modiloader | 3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 01:35

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General

Target

3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
Size

90KB
MD5

817b15fe10208496e6079d979dbb4e9f
SHA1

af0b6520daf2d0c523e0241d4e817f7c8c6f5893
SHA256

3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af
SHA512

1dbdf9c8f85bdce54a13802ceae6663bd3fbb73476acae7d4f01db37641c94f236ed592b9d494ddb02dc967208ba3009d97b2be31ddb0b8dac7ad502739a1790
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDW:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3U

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/1376-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1376-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1376-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1376-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe

Executes dropped EXE 3 IoCs

pid	Process
2992	csrsll.exe
1500	csrsll.exe
1376	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-1-5-21-1045960512-3948844814-3059691613-1000\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 2500 set thread context of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2992 set thread context of 1500	2992	csrsll.exe	103
PID 2992 set thread context of 1376	2992	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2500-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2500-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1872-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2500-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1872-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1872-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b85-29.dat	upx
behavioral2/memory/2992-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2992-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1872-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1376-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1376-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2992-50-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1376-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1872-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1376-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1376-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1500-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1376-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe
Token: SeDebugPrivilege	1500	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
2992	csrsll.exe
1500	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 2500 wrote to memory of 1872	2500	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	85
PID 1872 wrote to memory of 4864	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	88
PID 1872 wrote to memory of 4864	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	88
PID 1872 wrote to memory of 4864	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	88
PID 4864 wrote to memory of 4588	4864	cmd.exe	92
PID 4864 wrote to memory of 4588	4864	cmd.exe	92
PID 4864 wrote to memory of 4588	4864	cmd.exe	92
PID 1872 wrote to memory of 2992	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	93
PID 1872 wrote to memory of 2992	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	93
PID 1872 wrote to memory of 2992	1872	3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe	93
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1500	2992	csrsll.exe	103
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104
PID 2992 wrote to memory of 1376	2992	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
"C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe
  "C:\Users\Admin\AppData\Local\Temp\3327cae3d7976c4009925218df8ce0125859f970d80897b39d4b74e654cb85af.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IMREC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4864
  - - 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:4588
- - 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:2992
  - - 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:1500
  - - 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:1376

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\IMREC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
be831e1045e2f665c081011c83a236ef

SHA1
e24f1644685dbb7a6e1142a263a54dddc2b68bfa

SHA256
b1c4c0e4f18417cb986f14501345bd5e317171eda5d9eecfe55e04a3a6996b4c

SHA512
6c3f2115ca828dd8d9b9ce6a68051588ca6064a6ac5fdce9effdc80404a8d821e6e85b222f94285634f46ffbc7845b29a9070742508ffd131d16797f8bb8b440

Download Submit
memory/1376-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1500-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1872-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2500-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/2500-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2500-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2992-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2992-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2992-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads