modiloader | 8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 05:17

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General

Target

8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
Size

90KB
MD5

c9f389f6b4495d86d33ddfe85de5c430
SHA1

5ddee557e515de0170204532554eec4067f47201
SHA256

8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05
SHA512

00a699a0217f5ebf420e5ac3e15642b9db98e066b15bde20619964a68fb69c492cd62e93dfddc6a7ebbd283a2fb887863028107381362d90015821358f7eacac
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDe:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3E

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 1 IoCs

resource	yara_rule
behavioral1/memory/2180-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
320	csrsll.exe
1596	csrsll.exe
2180	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.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-1-5-21-3063565911-2056067323-3330884624-1000\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 276 set thread context of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 320 set thread context of 1596	320	csrsll.exe	36
PID 320 set thread context of 2180	320	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/276-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/276-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/276-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2568-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2568-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2568-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/276-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2568-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2568-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2568-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-132.dat	upx
behavioral1/memory/320-151-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2568-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/320-214-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2180-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/320-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/320-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2568-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1596-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-262-0x0000000000400000-0x0000000000414000-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	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe
Token: SeDebugPrivilege	1596	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
320	csrsll.exe
1596	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 276 wrote to memory of 2568	276	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	31
PID 2568 wrote to memory of 2748	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	32
PID 2568 wrote to memory of 2748	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	32
PID 2568 wrote to memory of 2748	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	32
PID 2568 wrote to memory of 2748	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	32
PID 2748 wrote to memory of 2296	2748	cmd.exe	34
PID 2748 wrote to memory of 2296	2748	cmd.exe	34
PID 2748 wrote to memory of 2296	2748	cmd.exe	34
PID 2748 wrote to memory of 2296	2748	cmd.exe	34
PID 2568 wrote to memory of 320	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	35
PID 2568 wrote to memory of 320	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	35
PID 2568 wrote to memory of 320	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	35
PID 2568 wrote to memory of 320	2568	8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe	35
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 1596	320	csrsll.exe	36
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37
PID 320 wrote to memory of 2180	320	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
"C:\Users\Admin\AppData\Local\Temp\8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:276
- C:\Users\Admin\AppData\Local\Temp\8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe
  "C:\Users\Admin\AppData\Local\Temp\8e27ad053bb0e09e2652fd8107b94bdc9384dca17689ffd377fa308969730c05N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BGVUI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - 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:2296
- - 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:320
  - - 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:1596
  - - 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:2180

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\BGVUI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4059ca1a39793d2ebb0c09f638572eb6

SHA1
80b3dc349b631e187ce73e50f2bdfdf116e20334

SHA256
6610c9ee94ad454660cf85be43a7508df050ec7070f877da9622d358aaca9905

SHA512
aa0915df714b35935501b4c0bc0a89aa706959f59b4f3f5e19e5ad4e43356c6be1907e85484281d0319a380b53c6eaeabe8eac7defd4c009d09f3d0629c62b98

Download Submit
memory/276-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/276-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/276-90-0x00000000023F0000-0x0000000002443000-memory.dmp

Filesize
332KB

Download
memory/276-61-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/276-41-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/276-71-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/276-29-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/276-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/276-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/276-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/276-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/276-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/276-79-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download
memory/276-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/320-157-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/320-214-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/320-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/320-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/320-167-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/320-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/320-178-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1596-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2568-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-147-0x0000000003130000-0x0000000003183000-memory.dmp

Filesize
332KB

Download
memory/2568-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-149-0x0000000003130000-0x0000000003183000-memory.dmp

Filesize
332KB

Download
memory/2568-150-0x0000000003130000-0x0000000003183000-memory.dmp

Filesize
332KB

Download
memory/2568-148-0x0000000003130000-0x0000000003183000-memory.dmp

Filesize
332KB

Download
memory/2568-241-0x0000000003130000-0x0000000003183000-memory.dmp

Filesize
332KB

Download
memory/2568-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2568-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads