modiloader | 7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 11:47

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General

Target

7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe
Size

90KB
MD5

e051772631fc53b6e8196477ce6dbbb0
SHA1

e26fee786b1ebe1e205fd61fa3753d131451bb3b
SHA256

7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94
SHA512

48ac58e597dca6ab1412e2c96280a79daf6ed3dd22fbed9785a13ca641739bdf7b80d250c6a29ecc70b7e1cb13cf441adddf30ac77acba343b82f5a14ffc8b84
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDr:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

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/624-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/624-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/624-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/624-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe

Executes dropped EXE 3 IoCs

pid	Process
3724	csrsll.exe
4552	csrsll.exe
624	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-1-5-21-4050598569-1597076380-177084960-1000\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 4568 set thread context of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 3724 set thread context of 4552	3724	csrsll.exe	95
PID 3724 set thread context of 624	3724	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4568-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4568-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/452-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/452-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/452-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4568-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca8-29.dat	upx
behavioral2/memory/3724-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/452-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3724-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3724-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/624-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/624-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/624-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/624-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3724-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/452-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/624-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4552-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/624-63-0x0000000000400000-0x0000000000414000-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	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe
452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe
3724	csrsll.exe
4552	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 4568 wrote to memory of 452	4568	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	84
PID 452 wrote to memory of 1836	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	87
PID 452 wrote to memory of 1836	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	87
PID 452 wrote to memory of 1836	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	87
PID 1836 wrote to memory of 2304	1836	cmd.exe	90
PID 1836 wrote to memory of 2304	1836	cmd.exe	90
PID 1836 wrote to memory of 2304	1836	cmd.exe	90
PID 452 wrote to memory of 3724	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	91
PID 452 wrote to memory of 3724	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	91
PID 452 wrote to memory of 3724	452	7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe	91
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 4552	3724	csrsll.exe	95
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96
PID 3724 wrote to memory of 624	3724	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe
"C:\Users\Admin\AppData\Local\Temp\7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe
  "C:\Users\Admin\AppData\Local\Temp\7b01c54583e03d45aa5ad9f05881470d5fe845c212cf672e1353184feac87c94N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OKJWD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1836
  - - 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:2304
- - 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:3724
  - - 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:4552
  - - 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:624

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\OKJWD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
eb2bc113ac812d93a935c32799d5d5c6

SHA1
fb59a977646783b652552a7f92bfd3d85500311b

SHA256
baaf2f13142624c3fb03d063b3ca52795160291f8f03cfe83743a4d25b2afd48

SHA512
3bddb7ef0bc7062b3410802344fd8a2d88be27e0e4999aeafe8016d7c065400f55292bba725a76f3bde26c17caa4684ec23eec3b9603d300cdec64cc9b18cafb

Download Submit
memory/452-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/452-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/452-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/452-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/452-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/452-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/624-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/624-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/624-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/624-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/624-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/624-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3724-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3724-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3724-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3724-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4552-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4568-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4568-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4568-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4568-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4568-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4568-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads