modiloader | 7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-11-2024 23:39

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General

Target

7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
Size

90KB
MD5

e096c9c1796d7b4e800a7c069b288627
SHA1

e9971c422c41e8668d540360d29a416ba22d2db6
SHA256

7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5
SHA512

e4a405d8c83730f59d5ed7fe87a085f41c8dd50f7eaefbb75129f281cd3deb51fd3a136cd98102ad9f26f6a4dd8703233b4391bdea99ded8948f665a150c4d03
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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/3428-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3428-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3428-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3428-63-0x0000000000400000-0x0000000000414000-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	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe

Executes dropped EXE 3 IoCs

pid	Process
3088	csrsll.exe
2884	csrsll.exe
3428	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 1088 set thread context of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 3088 set thread context of 2884	3088	csrsll.exe	99
PID 3088 set thread context of 3428	3088	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1088-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1088-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4060-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1088-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023cc1-29.dat	upx
behavioral2/memory/3088-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3428-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3428-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3428-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3428-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3428-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3088-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2884-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3428-63-0x0000000000400000-0x0000000000414000-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	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
3088	csrsll.exe
2884	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 1088 wrote to memory of 4060	1088	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	91
PID 4060 wrote to memory of 3104	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	94
PID 4060 wrote to memory of 3104	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	94
PID 4060 wrote to memory of 3104	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	94
PID 3104 wrote to memory of 2880	3104	cmd.exe	97
PID 3104 wrote to memory of 2880	3104	cmd.exe	97
PID 3104 wrote to memory of 2880	3104	cmd.exe	97
PID 4060 wrote to memory of 3088	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	98
PID 4060 wrote to memory of 3088	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	98
PID 4060 wrote to memory of 3088	4060	7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe	98
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 2884	3088	csrsll.exe	99
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100
PID 3088 wrote to memory of 3428	3088	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
"C:\Users\Admin\AppData\Local\Temp\7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Users\Admin\AppData\Local\Temp\7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe
  "C:\Users\Admin\AppData\Local\Temp\7771c24e36ec346e689e26fd17a0acf899ce218deec4367ac7e569bc495c82b5.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GMRDB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3104
  - - 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:2880
- - 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:3088
  - - 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:2884
  - - 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:3428

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\GMRDB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c83d816a361c538efa2b8b9bc48dbf0a

SHA1
33f5d5dc157510ef9309c1ec910244ccdfb1630c

SHA256
e1f1087d8f7a4037f02bb5be0f293d21823700d877512317c040e9803a85b3f9

SHA512
227292031a688c7fa71c4512ae153b15c8787ebd4def414677cddeaa62d407f22d678abfa2d9e0bfc8b3469caaf1fa3f6d3ddb5f1402628159016ac5b74be300

Download Submit
memory/1088-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/1088-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/1088-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1088-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1088-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1088-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2884-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3088-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3428-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3428-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3428-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3428-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3428-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3428-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4060-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads