modiloader | 9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 20:34

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General

Target

9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
Size

90KB
MD5

d0a420d68298f5d694777d423895de00
SHA1

cc3e266659ad6177e9f9bb828067ffa85dd34719
SHA256

9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771
SHA512

b5aaabdf8e36cf757332f5aca87a196f0b0f125fad4cb63bfc2931d1ec8c306ecc12cc3d58de7529ce78a791d766a73ad712c6ab7b903bacdd41686ddcb66cfb
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 4 IoCs

resource	yara_rule
behavioral2/memory/1888-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1888-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1888-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1888-64-0x0000000000400000-0x0000000000414000-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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe

Executes dropped EXE 3 IoCs

pid	Process
4180	csrsll.exe
4404	csrsll.exe
1888	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-1-5-21-786284298-625481688-3210388970-1000\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 3116 set thread context of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 4180 set thread context of 4404	4180	csrsll.exe	95
PID 4180 set thread context of 1888	4180	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3116-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3116-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1352-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3116-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000800000002347d-29.dat	upx
behavioral2/memory/4180-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1352-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4180-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4180-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1888-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1888-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1888-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1888-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1888-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4180-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1352-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4404-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1888-64-0x0000000000400000-0x0000000000414000-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	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe
Token: SeDebugPrivilege	4404	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
4180	csrsll.exe
4404	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 3116 wrote to memory of 1352	3116	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	84
PID 1352 wrote to memory of 4720	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	87
PID 1352 wrote to memory of 4720	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	87
PID 1352 wrote to memory of 4720	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	87
PID 4720 wrote to memory of 396	4720	cmd.exe	90
PID 4720 wrote to memory of 396	4720	cmd.exe	90
PID 4720 wrote to memory of 396	4720	cmd.exe	90
PID 1352 wrote to memory of 4180	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	91
PID 1352 wrote to memory of 4180	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	91
PID 1352 wrote to memory of 4180	1352	9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe	91
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 4404	4180	csrsll.exe	95
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96
PID 4180 wrote to memory of 1888	4180	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
"C:\Users\Admin\AppData\Local\Temp\9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Users\Admin\AppData\Local\Temp\9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe
  "C:\Users\Admin\AppData\Local\Temp\9d012691ead866ed1297e52a3fbd89cb075f2db2bc04118c55df1715f3739771N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1352
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FAPUN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4720
  - - 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:396
- - 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:4180
  - - 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:4404
  - - 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:1888

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\FAPUN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
730af0a34bdda85adbbbc3531d98dece

SHA1
c027af443a0fe6f4694a4b0a4ce83ae3d945f7f2

SHA256
51122380220b20a0832b86d7aba52ac3c0b4d5760547d057e7f71e923d580aa4

SHA512
d98640084f073deccfd88494f38519734ad90364c83957db9d2c624c255c49b194ab37f922a350ddb1791aebe5c468e16ccd32c947f3e0f8f7b940fb56f182b9

Download Submit
memory/1352-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1888-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1888-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1888-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1888-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1888-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1888-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3116-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3116-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3116-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3116-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/3116-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3116-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4404-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads