modiloader | 6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd

Analysis

max time kernel
119s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 17:14

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General

Target

6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
Size

90KB
MD5

b38a9d9e18b27a930df5cb6a35f65ba6
SHA1

8b65bda7495123b70a2c030717b1931f18d3c1a7
SHA256

6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd
SHA512

b3294d3c74a1af28647753b4c3e0cad2e499fc7555d6e9b601af175a15125c7132afc389472761ca3062c1a66c826ee715f82f25adf4af062299cbb091048abd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3/

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/2228-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2228-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2228-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2228-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe

Executes dropped EXE 3 IoCs

pid	Process
2144	csrsll.exe
2596	csrsll.exe
2228	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-1-5-21-3350944739-639801879-157714471-1000\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 4076 set thread context of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 2144 set thread context of 2596	2144	csrsll.exe	100
PID 2144 set thread context of 2228	2144	csrsll.exe	101

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4076-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4076-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2436-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2436-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4076-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2436-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c8e-29.dat	upx
behavioral2/memory/2436-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2144-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2228-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2144-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2436-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2596-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2228-61-0x0000000000400000-0x0000000000414000-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	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe
Token: SeDebugPrivilege	2596	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
2144	csrsll.exe
2596	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 4076 wrote to memory of 2436	4076	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	83
PID 2436 wrote to memory of 696	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	84
PID 2436 wrote to memory of 696	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	84
PID 2436 wrote to memory of 696	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	84
PID 696 wrote to memory of 2600	696	cmd.exe	88
PID 696 wrote to memory of 2600	696	cmd.exe	88
PID 696 wrote to memory of 2600	696	cmd.exe	88
PID 2436 wrote to memory of 2144	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	89
PID 2436 wrote to memory of 2144	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	89
PID 2436 wrote to memory of 2144	2436	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	89
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2596	2144	csrsll.exe	100
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101
PID 2144 wrote to memory of 2228	2144	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
"C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
  "C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JBGUU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:696
  - - 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:2600
- - 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:2144
  - - 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:2596
  - - 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:2228

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\JBGUU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
94dd2f7a4be53a42c5b1eec3b59a3013

SHA1
b7f77cfab71294e3336c8f79b4b00143bd671f65

SHA256
97637aae6526fdc664f4a66e7942c544b8075d0f7221ec7df4452b1da196af87

SHA512
aaf992aef49623dab79763503fb18f1866efb2491a95c34440ef7df11546e8b884269e83bf249e92ecbea53c2238571d76665966bf434bfe9d251928fe407c4f

Download Submit
memory/2144-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2144-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2436-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4076-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4076-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4076-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4076-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4076-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4076-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads