modiloader | 01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2

Analysis

max time kernel
119s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 08:31

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General

Target

01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
Size

326KB
MD5

673481a588ed00a0c51152ad649a753d
SHA1

cf51cbc0101549b3aebcf17bb2d75a6af6542dc0
SHA256

01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2
SHA512

b0ee3ea7df2257e5bc6b517851f4fdc9c8283263cb2b3f49aca44aa8fdfeb7cf7c1cd38bf48eb5811565c882ba91dd2d0f76e97339f3feb5e05400b73c13a9c4
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVW:csxD5cwohO+O1sVG0/pZ6iPC8B

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/4468-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4468-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4468-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4468-60-0x0000000000400000-0x0000000000414000-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	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe

Executes dropped EXE 3 IoCs

pid	Process
2156	csrsll.exe
548	csrsll.exe
4468	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 5028 set thread context of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 2156 set thread context of 548	2156	csrsll.exe	99
PID 2156 set thread context of 4468	2156	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5028-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5028-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1320-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1320-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1320-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5028-12-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000d000000023b77-28.dat	upx
behavioral2/memory/2156-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1320-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2156-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2156-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4468-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4468-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4468-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4468-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4468-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2156-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1320-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/548-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4468-60-0x0000000000400000-0x0000000000414000-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	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.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	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe
Token: SeDebugPrivilege	548	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
2156	csrsll.exe
548	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 5028 wrote to memory of 1320	5028	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	91
PID 1320 wrote to memory of 4080	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	94
PID 1320 wrote to memory of 4080	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	94
PID 1320 wrote to memory of 4080	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	94
PID 4080 wrote to memory of 2344	4080	cmd.exe	97
PID 4080 wrote to memory of 2344	4080	cmd.exe	97
PID 4080 wrote to memory of 2344	4080	cmd.exe	97
PID 1320 wrote to memory of 2156	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	98
PID 1320 wrote to memory of 2156	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	98
PID 1320 wrote to memory of 2156	1320	01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe	98
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 548	2156	csrsll.exe	99
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100
PID 2156 wrote to memory of 4468	2156	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
"C:\Users\Admin\AppData\Local\Temp\01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Users\Admin\AppData\Local\Temp\01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe
  "C:\Users\Admin\AppData\Local\Temp\01eb0c65dea2550f193a29a5676a9845e29243284763670a1a776ea451a780c2.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1320
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XUIUF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4080
  - - 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:2344
- - 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:2156
  - - 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:548
  - - 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:4468

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\XUIUF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
91d936234363bbc91f058af78d4fe48d

SHA1
7cee2f22523b02401c952b9bd6e3c91fa933c560

SHA256
3817f4df8a89187e09d723fde5848052e3638e4a672446eb5b2c667748f0ac43

SHA512
13e401561e1c7158e4723bda2355adf7654e3402ea3cfc431edc49ff52d27e2bded64f88fc0a26e7acfc5d968b5e8c3e760cb6a5b4034b65caa7e4fc96728f49

Download Submit
memory/548-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1320-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1320-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1320-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1320-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1320-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2156-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2156-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2156-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2156-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4468-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4468-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4468-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4468-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4468-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4468-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5028-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5028-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/5028-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5028-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/5028-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5028-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads