modiloader | c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 10:40

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General

Target

c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
Size

300KB
MD5

928d1835d34170e2d9a50f00297c35a0
SHA1

40e4a2771cf4daf8402e34cf8e2bec1aaa7b94a1
SHA256

c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2
SHA512

e0a3ba515e624a8e96a29b7b605c8ab1aefb2c074bd43f352746d83231c94113e5e4e185c9811836e5b78c9fa9d7f1ee59ddacfaa16bbbd19f304bb35a26b99a
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38G8:UsxD5cwohO+O1sVG0/pZ6iPC8m

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/3620-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3620-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3620-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3620-59-0x0000000000400000-0x0000000000414000-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	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe

Executes dropped EXE 3 IoCs

pid	Process
1884	csrsll.exe
1776	csrsll.exe
3620	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 4220 set thread context of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 1884 set thread context of 1776	1884	csrsll.exe	102
PID 1884 set thread context of 3620	1884	csrsll.exe	103

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4188-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4188-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4188-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4188-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3620-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3620-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3620-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3620-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3620-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4188-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1776-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3620-59-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe
Token: SeDebugPrivilege	1776	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
1884	csrsll.exe
1776	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4220 wrote to memory of 4188	4220	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	85
PID 4188 wrote to memory of 4000	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	90
PID 4188 wrote to memory of 4000	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	90
PID 4188 wrote to memory of 4000	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	90
PID 4000 wrote to memory of 3384	4000	cmd.exe	94
PID 4000 wrote to memory of 3384	4000	cmd.exe	94
PID 4000 wrote to memory of 3384	4000	cmd.exe	94
PID 4188 wrote to memory of 1884	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	95
PID 4188 wrote to memory of 1884	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	95
PID 4188 wrote to memory of 1884	4188	c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe	95
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 1776	1884	csrsll.exe	102
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103
PID 1884 wrote to memory of 3620	1884	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
"C:\Users\Admin\AppData\Local\Temp\c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Users\Admin\AppData\Local\Temp\c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe
  "C:\Users\Admin\AppData\Local\Temp\c924686f50eb6b87b1c908b751e8824cd945fd374bf5da4917fbc66ac2a066c2.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4188
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DIXYV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4000
  - - 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:3384
- - 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:1884
  - - 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:1776
  - - 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:3620

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\DIXYV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
d6fdebef47697c045690659620b1e08f

SHA1
c51dd40fb0723ff8d872bb52b32601bb1d43e93c

SHA256
fb05ee4897c502c257a440d1435969bee5f05430d3b2713a7f4e1cf11b40c9cd

SHA512
6364dcbca7df978a8e49f66d40ce66cdfa56a3c823fa244d660e7918175c7b67222befb6d9cbf456f695e9dc43ce9cbdf2a62f4c45c4e4449e6e041a705a1229

Download Submit
memory/1776-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1884-40-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1884-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1884-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3620-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3620-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3620-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3620-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3620-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3620-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4188-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4220-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4220-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4220-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4220-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4220-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads