modiloader | 7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-09-2024 18:08

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General

Target

7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
Size

90KB
MD5

05a6b431752ae17128c7b12127178350
SHA1

3fb5daa48f9819dd304a403952b8d0a83134c1e0
SHA256

7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71
SHA512

a50925ff25f8d89a155e3e8ca56acc9d4565943b6df8b14d10c5146c35bf437f41997c4252e71edc42d075fb0923f402de000488c9b5f2a8cb2d28a3bd28e73a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2424-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1624	csrsll.exe
1892	csrsll.exe
2424	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 1624 set thread context of 1892	1624	csrsll.exe	35
PID 1624 set thread context of 2424	1624	csrsll.exe	36

UPX packed file 24 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2444-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2444-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2444-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2444-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2444-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2444-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2444-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0006000000011c2f-134.dat	upx
behavioral1/memory/2032-135-0x0000000002630000-0x0000000002683000-memory.dmp	upx
behavioral1/memory/2032-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1624-223-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1624-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1892-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-263-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
1624	csrsll.exe
1892	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2444 wrote to memory of 2032	2444	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	30
PID 2032 wrote to memory of 1060	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	31
PID 2032 wrote to memory of 1060	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	31
PID 2032 wrote to memory of 1060	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	31
PID 2032 wrote to memory of 1060	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	31
PID 1060 wrote to memory of 1428	1060	cmd.exe	33
PID 1060 wrote to memory of 1428	1060	cmd.exe	33
PID 1060 wrote to memory of 1428	1060	cmd.exe	33
PID 1060 wrote to memory of 1428	1060	cmd.exe	33
PID 2032 wrote to memory of 1624	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	34
PID 2032 wrote to memory of 1624	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	34
PID 2032 wrote to memory of 1624	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	34
PID 2032 wrote to memory of 1624	2032	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	34
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 1892	1624	csrsll.exe	35
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36
PID 1624 wrote to memory of 2424	1624	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
"C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
  "C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OCDYU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1060
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1428
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1624
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1892
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\OCDYU.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
b47da6b89bba1c3ade965aece6eb3d30

SHA1
aae2de22e3aef37920d4fa5c60b222af33e3bd0a

SHA256
aa4d5831befc6bb62852c6baf6a2139ed2f6ed40ddf4a00a95381cdd935b34eb

SHA512
6891e32222a930c6021e59d79a9acae7733a68f06439ce6062b092562e4c632a2c271e78537c219efef73b3f7ecb8617a68d73ad003e9db1cebec83d34a4dbb9

Download Submit
memory/1624-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1624-168-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1624-223-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1624-179-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1624-158-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1892-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-244-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-216-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2032-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-149-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-150-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-151-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-135-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2032-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2424-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2444-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2444-61-0x0000000001D00000-0x0000000001D01000-memory.dmp

Filesize
4KB

Download
memory/2444-71-0x0000000001D20000-0x0000000001D21000-memory.dmp

Filesize
4KB

Download
memory/2444-79-0x0000000001D40000-0x0000000001D42000-memory.dmp

Filesize
8KB

Download
memory/2444-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-41-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/2444-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2444-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2444-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-29-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2444-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2444-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads