modiloader | 6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 02:04

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General

Target

6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
Size

326KB
MD5

2ce8b3e28aeb6f22eae26295a13b083b
SHA1

771aceddde227acde749787c6a7889c4c6bf771b
SHA256

6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47
SHA512

9fb2887abcdf5bf5907dab68c036060ebc258e94657b20b14dbddf994f8165153215e6f41a15b7088e4147d3db096b1d37e1e4b75f302c5281aec18264acf857
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV7:h0sxD5cwohO+O1sVG0/pZ6iPC80

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 4 IoCs

resource	yara_rule
behavioral2/memory/3516-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3516-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3516-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3516-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe

Executes dropped EXE 3 IoCs

pid	Process
5076	csrsll.exe
2928	csrsll.exe
3516	csrsll.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-1-5-21-940901362-3608833189-1915618603-1000\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 1700 set thread context of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 5076 set thread context of 2928	5076	csrsll.exe	90
PID 5076 set thread context of 3516	5076	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1700-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1700-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1916-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1916-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1916-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1700-12-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000b000000023b9b-28.dat	upx
behavioral2/memory/1916-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5076-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3516-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3516-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3516-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5076-55-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3516-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1916-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3516-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2928-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3516-60-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe
Token: SeDebugPrivilege	2928	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
5076	csrsll.exe
2928	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1700 wrote to memory of 1916	1700	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	83
PID 1916 wrote to memory of 4216	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	84
PID 1916 wrote to memory of 4216	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	84
PID 1916 wrote to memory of 4216	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	84
PID 4216 wrote to memory of 2856	4216	cmd.exe	88
PID 4216 wrote to memory of 2856	4216	cmd.exe	88
PID 4216 wrote to memory of 2856	4216	cmd.exe	88
PID 1916 wrote to memory of 5076	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	89
PID 1916 wrote to memory of 5076	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	89
PID 1916 wrote to memory of 5076	1916	6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe	89
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 2928	5076	csrsll.exe	90
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91
PID 5076 wrote to memory of 3516	5076	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
"C:\Users\Admin\AppData\Local\Temp\6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe
  "C:\Users\Admin\AppData\Local\Temp\6ef7878a37352b1f79885a37a34e4b8ad4cc968f2d8bcb43c58eceb02d4c4f47.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DRHVQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4216
  - - 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:2856
- - 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:5076
  - - 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:2928
  - - 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:3516

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

Query Registry

T1012

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\DRHVQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
2930cea6fb9dceb97b1ad1aa515d1eb7

SHA1
bf162e6843556309a969d553f1ae2ae60e8e5788

SHA256
317f954c167d2f680353e267991e41390f010a0aa173f64c4f94268913366a9f

SHA512
ada1551db0a26eabb2d09f7b04706ce10094735713e0fc8a9ebdff1bbdbcd8f50b141b5893b72bb21837859a1b58c71856bf3fc18935909b102c5d2bdce18015

Download Submit
memory/1700-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1700-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1700-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1700-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/1700-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1700-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1916-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1916-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1916-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1916-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1916-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2928-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3516-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-55-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5076-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5076-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads