modiloader | c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958

Analysis

max time kernel
119s
max time network
122s
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 03:05

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General

Target

c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
Size

300KB
MD5

b27bfa755d274c7faffdd11e68160090
SHA1

cfea8994af5d722f5af9f57ef390f5773e5b6ccd
SHA256

c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958
SHA512

f80332288edce12df755a0df6ecec38324f844757c141cdf7b6421ddeebdcaa4ec95e05ae3c9763fb90960804b3f45d26b72e95122470a104a54ec95dac7bd50
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gk:UsxD5cwohO+O1sVG0/pZ6iPC8S

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/3660-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3660-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3660-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3660-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe

Executes dropped EXE 3 IoCs

pid	Process
644	csrsll.exe
4728	csrsll.exe
3660	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-1-5-21-3756129449-3121373848-4276368241-1000\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 2468 set thread context of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 644 set thread context of 4728	644	csrsll.exe	94
PID 644 set thread context of 3660	644	csrsll.exe	95

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2608-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3660-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3660-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2608-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4728-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3660-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4728-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-61-0x0000000000400000-0x0000000000414000-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	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	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe
Token: SeDebugPrivilege	4728	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
644	csrsll.exe
4728	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2468 wrote to memory of 2608	2468	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	84
PID 2608 wrote to memory of 3936	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	85
PID 2608 wrote to memory of 3936	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	85
PID 2608 wrote to memory of 3936	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	85
PID 3936 wrote to memory of 1844	3936	cmd.exe	88
PID 3936 wrote to memory of 1844	3936	cmd.exe	88
PID 3936 wrote to memory of 1844	3936	cmd.exe	88
PID 2608 wrote to memory of 644	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	89
PID 2608 wrote to memory of 644	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	89
PID 2608 wrote to memory of 644	2608	c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe	89
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 4728	644	csrsll.exe	94
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95
PID 644 wrote to memory of 3660	644	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
"C:\Users\Admin\AppData\Local\Temp\c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Users\Admin\AppData\Local\Temp\c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe
  "C:\Users\Admin\AppData\Local\Temp\c4c6dcfe7724bb5cb9aea24657ecde3113d24570bb8f5728a0e1102f3ba25958N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IMIPE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3936
  - - 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:1844
- - 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:644
  - - 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:4728
  - - 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:3660

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\IMIPE.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
f01556f4ad8863d7001280945f2a1dd8

SHA1
d1f664364302c25a9162992c6b0552e67a972bbd

SHA256
be77986351003ec3c880b4f8f5211ad0e3d6848b96b734a380eb3b9a3aebbab7

SHA512
10c317bbcaadfdc601fc723b8807c67b1dd5f603cf24da298397a9705e6554af8eebb03c32f96644d2cc711d27e9b97812c65537093ab5329eb674c9ffd9e4c2

Download Submit
memory/644-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/644-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/644-52-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2468-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2468-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2468-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/2468-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2608-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4728-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4728-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads