2bae7e7dbc62a5f31973addb4641dc94ba06b0181f35d240a745dbb3bae28610

General

Target

bce67b4a22e1c0c2b292eb0144b22e50.exe
Size

271KB
MD5

bce67b4a22e1c0c2b292eb0144b22e50
SHA1

84d8648001806f07237a5f9cefc413b74b38856c
SHA256

2bae7e7dbc62a5f31973addb4641dc94ba06b0181f35d240a745dbb3bae28610
SHA512

83a58f48524a5d4520ffd67296ed64bc95b4b1f0b17cee97e5920053e0199e12604b8a0fd7022ff5edcf5301b43da63d43b8381c50d1f24c289c9fa644125e0a
SSDEEP

6144:O0vsSRYQsNWZae/vy+C3ppgktHG+s7Osqx3TG:hEgYVnbZbHGPOsqFTG

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\c1d0fc3f\\X"	Explorer.EXE

Deletes itself 1 IoCs

pid	Process
2540	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
336	csrss.exe
3032	X

Loads dropped DLL 2 IoCs

pid	Process
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe

Unexpected DNS network traffic destination 5 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	31.193.3.240
Destination IP	31.193.3.240
Destination IP	31.193.3.240
Destination IP	31.193.3.240
Destination IP	31.193.3.240

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3060 set thread context of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\registry\machine\Software\Classes\Interface\{a873d410-6fd3-1b1c-08a3-ea6185436e1c}	bce67b4a22e1c0c2b292eb0144b22e50.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{a873d410-6fd3-1b1c-08a3-ea6185436e1c}\u = "71"	bce67b4a22e1c0c2b292eb0144b22e50.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{a873d410-6fd3-1b1c-08a3-ea6185436e1c}\cid = "8191551436808635230"	bce67b4a22e1c0c2b292eb0144b22e50.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
3032	X

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe
Token: SeDebugPrivilege	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
336	csrss.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1380	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	21
PID 3060 wrote to memory of 336	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	2
PID 3060 wrote to memory of 3032	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	28
PID 3060 wrote to memory of 3032	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	28
PID 3060 wrote to memory of 3032	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	28
PID 3060 wrote to memory of 3032	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	28
PID 3032 wrote to memory of 1380	3032	X	21
PID 3060 wrote to memory of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29
PID 3060 wrote to memory of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29
PID 3060 wrote to memory of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29
PID 3060 wrote to memory of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29
PID 3060 wrote to memory of 2540	3060	bce67b4a22e1c0c2b292eb0144b22e50.exe	29
PID 336 wrote to memory of 2516	336	csrss.exe	31
PID 336 wrote to memory of 2516	336	csrss.exe	31
PID 336 wrote to memory of 3020	336	csrss.exe	32
PID 336 wrote to memory of 3020	336	csrss.exe	32

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:336

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies WinLogon for persistence
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1380
- C:\Users\Admin\AppData\Local\Temp\bce67b4a22e1c0c2b292eb0144b22e50.exe
  "C:\Users\Admin\AppData\Local\Temp\bce67b4a22e1c0c2b292eb0144b22e50.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Users\Admin\AppData\Local\c1d0fc3f\X
    *0*47*8e51c35e*31.193.3.240:53
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3032
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Deletes itself
    PID:2540

C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2516

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -Embedding
1⤵
PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\system32\consrv.dll

Filesize
29KB

MD5
76f2ad6212981964aeea83926e5ffdd7

SHA1
8f016ab22ce1338507218f713166c5c169eee65e

SHA256
0b2de0f2219abcf8c5bd580b5b46777eb41290bf5d4b4225b4fd65e56cd99e08

SHA512
e650275cf11752d12c89aa189270627e54b7b5f55b6f9261aa4e25eafc073374ae9bbae2a380338a81ee07c4aaa0ee3608a45c118fccae1c382f99554b26a91f

Download Submit
\Users\Admin\AppData\Local\c1d0fc3f\X

Filesize
38KB

MD5
72de2dadaf875e2fd7614e100419033c

SHA1
5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

SHA256
c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

SHA512
e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

Download Submit
\systemroot\assembly\tmp\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}

Filesize
2KB

MD5
7936f8300ff9affef5a0d77d72d5a4f9

SHA1
6b33ba78a7f4d3a5cbc066747852e75fa0476685

SHA256
d45121e53601695b9220cf4d4254bbb0f39aee0a0801d86abdac88e02612261a

SHA512
dca62d990083d9f4e0616a3cb87964add1d66e4a1280ade1a4e8261b22c4129d51e716977e34929e96287e244f4d30b09f304dd9699e4b7903808750fb2ab308

Download Submit
memory/336-18-0x0000000002280000-0x000000000228B000-memory.dmp

Filesize
44KB

Download
memory/336-42-0x0000000002DD0000-0x0000000002DD2000-memory.dmp

Filesize
8KB

Download
memory/336-28-0x0000000002280000-0x000000000228B000-memory.dmp

Filesize
44KB

Download
memory/336-25-0x0000000002DD0000-0x0000000002DD2000-memory.dmp

Filesize
8KB

Download
memory/1380-27-0x0000000003CB0000-0x0000000003CBB000-memory.dmp

Filesize
44KB

Download
memory/1380-37-0x0000000003CB0000-0x0000000003CBB000-memory.dmp

Filesize
44KB

Download
memory/1380-3-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

Filesize
24KB

Download
memory/1380-11-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

Filesize
24KB

Download
memory/1380-7-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

Filesize
24KB

Download
memory/1380-31-0x0000000002DE0000-0x0000000002DE8000-memory.dmp

Filesize
32KB

Download
memory/1380-33-0x0000000003CB0000-0x0000000003CBB000-memory.dmp

Filesize
44KB

Download
memory/1380-12-0x0000000002DD0000-0x0000000002DD2000-memory.dmp

Filesize
8KB

Download
memory/1380-38-0x0000000003CC0000-0x0000000003CCB000-memory.dmp

Filesize
44KB

Download
memory/1380-39-0x0000000003CC0000-0x0000000003CCB000-memory.dmp

Filesize
44KB

Download
memory/3060-40-0x0000000030670000-0x00000000306C3000-memory.dmp

Filesize
332KB

Download
memory/3060-41-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/3060-2-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/3060-44-0x0000000030670000-0x00000000306C3000-memory.dmp

Filesize
332KB

Download
memory/3060-1-0x0000000030670000-0x00000000306C3000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads