modiloader | bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18/12/2024, 02:22

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General

Target

bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
Size

90KB
MD5

bb37524de39837aa31846d9e01efd20f
SHA1

cfa23177d898c65dd56f316fccd6b0dce09b3872
SHA256

bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1
SHA512

403412d0299304809a9cd2ee3121ef610ac348cb7ccbda9fe713b4dc627eff9e6e5702891cf97b0b3558b8deb38763ffc25a5d513076afe5cce78e2d19906cad
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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 family
modiloader

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral1/memory/1752-251-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1752-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2884	csrsll.exe
980	csrsll.exe
1752	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.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-1-5-21-2703099537-420551529-3771253338-1000\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 1792 set thread context of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 2884 set thread context of 980	2884	csrsll.exe	35
PID 2884 set thread context of 1752	2884	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1792-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1748-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1748-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1748-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1748-110-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1748-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1792-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1748-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00090000000120fe-134.dat	upx
behavioral1/memory/1748-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2884-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2884-246-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1752-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1748-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/980-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1752-259-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
2884	csrsll.exe
980	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1792 wrote to memory of 1748	1792	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	30
PID 1748 wrote to memory of 2360	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	31
PID 1748 wrote to memory of 2360	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	31
PID 1748 wrote to memory of 2360	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	31
PID 1748 wrote to memory of 2360	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	31
PID 2360 wrote to memory of 2724	2360	cmd.exe	33
PID 2360 wrote to memory of 2724	2360	cmd.exe	33
PID 2360 wrote to memory of 2724	2360	cmd.exe	33
PID 2360 wrote to memory of 2724	2360	cmd.exe	33
PID 1748 wrote to memory of 2884	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	34
PID 1748 wrote to memory of 2884	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	34
PID 1748 wrote to memory of 2884	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	34
PID 1748 wrote to memory of 2884	1748	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	34
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 980	2884	csrsll.exe	35
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36
PID 2884 wrote to memory of 1752	2884	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
"C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
  "C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\CQPBJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - 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:2724
- - 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:2884
  - - 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:980
  - - 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:1752

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\CQPBJ.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
022d7a1f43dcb9b9e6326b5914f676e5

SHA1
1b5fd7422226235e162473187bcfc859148f880a

SHA256
7472c344f1d9220422bf196dd57609c2873957bebb323e05ad1cec4f3dfedc6f

SHA512
65b0db0146ab871d291d79798a7cf0dae3f2bf7f35f3bf7194317e71e94b215b62c25d47262c3246bdc1208e49f74445c8ef0d88305f6125bdb12ab7a285c38a

Download Submit
memory/980-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-148-0x00000000031F0000-0x0000000003243000-memory.dmp

Filesize
332KB

Download
memory/1748-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1748-212-0x0000000003200000-0x0000000003253000-memory.dmp

Filesize
332KB

Download
memory/1748-110-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1748-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1752-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1752-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1792-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1792-71-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1792-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-29-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/1792-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-61-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1792-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1792-15-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1792-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1792-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1792-93-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/1792-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-80-0x0000000000750000-0x0000000000752000-memory.dmp

Filesize
8KB

Download
memory/1792-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2884-246-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2884-176-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2884-165-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2884-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2884-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads