bbbe0f87f32aa46d3fff7d38a14e18eaafc5da59ad4d116943114a48b9fa2800

General

Target

63c576b2d0d2232a7020cffec5d72ab0.exe
Size

278KB
MD5

63c576b2d0d2232a7020cffec5d72ab0
SHA1

8244042f6024f226aedf351da1f74f523b0c0842
SHA256

bbbe0f87f32aa46d3fff7d38a14e18eaafc5da59ad4d116943114a48b9fa2800
SHA512

07e8a9a655f1e89777e6978fb9fbb16411f9bc9f83b6c555ea16b0bb155f7e58c46c523a43f562ba4e40f387832a09c8152f71222c9a934c6f24950e2c6d6cef
SSDEEP

6144:8jpjHcQIdULzlD3YhvS98AlP4gL9rjRa9nglkDl:GpIWLz/JAk9rjRaNglkR

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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\62f46dd0\\X"	Explorer.EXE

Deletes itself 1 IoCs

pid	Process
2552	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
336	csrss.exe
2760	X

Loads dropped DLL 2 IoCs

pid	Process
1448	63c576b2d0d2232a7020cffec5d72ab0.exe
1448	63c576b2d0d2232a7020cffec5d72ab0.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 1448 set thread context of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29

Modifies registry class 3 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{b1284f4e-e5d7-808d-311b-8920c23973db}\cid = "1840440103482519930"	63c576b2d0d2232a7020cffec5d72ab0.exe
Key created	\registry\machine\Software\Classes\Interface\{b1284f4e-e5d7-808d-311b-8920c23973db}	63c576b2d0d2232a7020cffec5d72ab0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{b1284f4e-e5d7-808d-311b-8920c23973db}\u = "71"	63c576b2d0d2232a7020cffec5d72ab0.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1448	63c576b2d0d2232a7020cffec5d72ab0.exe
1448	63c576b2d0d2232a7020cffec5d72ab0.exe
1448	63c576b2d0d2232a7020cffec5d72ab0.exe
1448	63c576b2d0d2232a7020cffec5d72ab0.exe
2760	X

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	63c576b2d0d2232a7020cffec5d72ab0.exe
Token: SeDebugPrivilege	1448	63c576b2d0d2232a7020cffec5d72ab0.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1244	Explorer.EXE
1244	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1244	Explorer.EXE
1244	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 1448 wrote to memory of 1244	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	18
PID 1448 wrote to memory of 336	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	6
PID 1448 wrote to memory of 2760	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	28
PID 1448 wrote to memory of 2760	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	28
PID 1448 wrote to memory of 2760	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	28
PID 1448 wrote to memory of 2760	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	28
PID 2760 wrote to memory of 1244	2760	X	18
PID 1448 wrote to memory of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29
PID 1448 wrote to memory of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29
PID 1448 wrote to memory of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29
PID 1448 wrote to memory of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29
PID 1448 wrote to memory of 2552	1448	63c576b2d0d2232a7020cffec5d72ab0.exe	29
PID 336 wrote to memory of 1416	336	csrss.exe	31
PID 336 wrote to memory of 1416	336	csrss.exe	31
PID 336 wrote to memory of 2216	336	csrss.exe	32
PID 336 wrote to memory of 2216	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:1244
- C:\Users\Admin\AppData\Local\Temp\63c576b2d0d2232a7020cffec5d72ab0.exe
  "C:\Users\Admin\AppData\Local\Temp\63c576b2d0d2232a7020cffec5d72ab0.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Users\Admin\AppData\Local\62f46dd0\X
    *0*47*e675717a*31.193.3.240:53
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - Deletes itself
    PID:2552

C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1416

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -Embedding
1⤵
PID:2216

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
1149c1bd71248a9d170e4568fb08df30

SHA1
6f77f183d65709901f476c5d6eebaed060a495f9

SHA256
c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

SHA512
9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

Download Submit
\Users\Admin\AppData\Local\62f46dd0\X

Filesize
38KB

MD5
72de2dadaf875e2fd7614e100419033c

SHA1
5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

SHA256
c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

SHA512
e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

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

Filesize
2KB

MD5
a6fb3c7ae7e2fdf8000eee97bb2d2411

SHA1
40bf52c55bc655e48a2337cf642bbac28e3cec8d

SHA256
10b1e83c2a5b056eff6aa1163711f7ad440c453d91d0c6f446121b257d43f647

SHA512
6cb494b437d561f24f9c8d84b72f8ce882f5f5418bd086c0a6dbf758d002788f4f227c7e7903e108008200be2edb6c4f6b1c508076d8d0bbb2cef21922cff868

Download Submit
memory/336-31-0x0000000002100000-0x000000000210B000-memory.dmp

Filesize
44KB

Download
memory/336-19-0x0000000002100000-0x000000000210B000-memory.dmp

Filesize
44KB

Download
memory/336-16-0x00000000020F0000-0x00000000020F1000-memory.dmp

Filesize
4KB

Download
memory/1244-27-0x0000000002AE0000-0x0000000002AEB000-memory.dmp

Filesize
44KB

Download
memory/1244-44-0x0000000002AF0000-0x0000000002AFB000-memory.dmp

Filesize
44KB

Download
memory/1244-8-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

Filesize
24KB

Download
memory/1244-4-0x0000000002AB0000-0x0000000002AB2000-memory.dmp

Filesize
8KB

Download
memory/1244-12-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

Filesize
24KB

Download
memory/1244-29-0x0000000002AC0000-0x0000000002AC8000-memory.dmp

Filesize
32KB

Download
memory/1244-3-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

Filesize
24KB

Download
memory/1244-33-0x0000000002AE0000-0x0000000002AEB000-memory.dmp

Filesize
44KB

Download
memory/1244-38-0x0000000002AF0000-0x0000000002AFB000-memory.dmp

Filesize
44KB

Download
memory/1244-37-0x0000000002AE0000-0x0000000002AEB000-memory.dmp

Filesize
44KB

Download
memory/1448-1-0x0000000030670000-0x00000000306C1000-memory.dmp

Filesize
324KB

Download
memory/1448-42-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1448-43-0x0000000030670000-0x00000000306C1000-memory.dmp

Filesize
324KB

Download
memory/1448-40-0x0000000030670000-0x00000000306C1000-memory.dmp

Filesize
324KB

Download
memory/1448-2-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads