bcde1a1b358288bda4eeb85088703c509df57719c60b5417d4c1c56bdc631d24

General

Target

765e7c536aaca5b29228227b7e4c0c54.exe
Size

257KB
MD5

765e7c536aaca5b29228227b7e4c0c54
SHA1

d4aac6b46ae174d4adff8c114ab4eb6f957f2ce8
SHA256

bcde1a1b358288bda4eeb85088703c509df57719c60b5417d4c1c56bdc631d24
SHA512

580318010e0f98419eea5a40d11d933280bb10a05d918edd331b57b5fd054b1141465b8c1ab3dfba99d633416496f0ec248398156d38f297ca1ea5a411848efa
SSDEEP

6144:SNCMjUidDzOW8qGt8WP9Itvy5UnByKtIr89VhsKCAArs5Jn7u:SkMjFOW8q6JVItvtnB4rWhsKCAArs5JK

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

Explorer.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\a98ee895\\X"	Explorer.EXE

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2936 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

csrss.exeX

pid process

340 csrss.exe
2664 X
Loads dropped DLL 2 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exe

pid process

2288 765e7c536aaca5b29228227b7e4c0c54.exe
2288 765e7c536aaca5b29228227b7e4c0c54.exe
Unexpected DNS network traffic destination 5 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 69.64.52.10
Destination IP 69.64.52.10
Destination IP 69.64.52.10
Destination IP 69.64.52.10
Destination IP 69.64.52.10
Suspicious use of SetThreadContext 1 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exe

description pid process target process

PID 2288 set thread context of 2936 2288 765e7c536aaca5b29228227b7e4c0c54.exe cmd.exe

pid	process
2936	cmd.exe

pid	process
340	csrss.exe
2664	X

description	ioc
Destination IP	69.64.52.10
Destination IP	69.64.52.10
Destination IP	69.64.52.10
Destination IP	69.64.52.10
Destination IP	69.64.52.10

description	pid	process	target process
PID 2288 set thread context of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe

Modifies registry class 3 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{bfa737fc-a273-1bb3-d4a0-adf310963e7d}\cid = "13573764572684242185"	765e7c536aaca5b29228227b7e4c0c54.exe
Key created	\registry\machine\Software\Classes\Interface\{bfa737fc-a273-1bb3-d4a0-adf310963e7d}	765e7c536aaca5b29228227b7e4c0c54.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{bfa737fc-a273-1bb3-d4a0-adf310963e7d}\u = "40"	765e7c536aaca5b29228227b7e4c0c54.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exeX

pid	process
2288	765e7c536aaca5b29228227b7e4c0c54.exe
2288	765e7c536aaca5b29228227b7e4c0c54.exe
2288	765e7c536aaca5b29228227b7e4c0c54.exe
2288	765e7c536aaca5b29228227b7e4c0c54.exe
2664	X

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exe

description pid process

Token: SeDebugPrivilege 2288 765e7c536aaca5b29228227b7e4c0c54.exe
Token: SeDebugPrivilege 2288 765e7c536aaca5b29228227b7e4c0c54.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

csrss.exe

pid process

340 csrss.exe

description	pid	process
Token: SeDebugPrivilege	2288	765e7c536aaca5b29228227b7e4c0c54.exe
Token: SeDebugPrivilege	2288	765e7c536aaca5b29228227b7e4c0c54.exe

pid	process
340	csrss.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

765e7c536aaca5b29228227b7e4c0c54.exeXcsrss.exe

description	pid	process	target process
PID 2288 wrote to memory of 1196	2288	765e7c536aaca5b29228227b7e4c0c54.exe	Explorer.EXE
PID 2288 wrote to memory of 340	2288	765e7c536aaca5b29228227b7e4c0c54.exe	csrss.exe
PID 2288 wrote to memory of 2664	2288	765e7c536aaca5b29228227b7e4c0c54.exe	X
PID 2288 wrote to memory of 2664	2288	765e7c536aaca5b29228227b7e4c0c54.exe	X
PID 2288 wrote to memory of 2664	2288	765e7c536aaca5b29228227b7e4c0c54.exe	X
PID 2288 wrote to memory of 2664	2288	765e7c536aaca5b29228227b7e4c0c54.exe	X
PID 2664 wrote to memory of 1196	2664	X	Explorer.EXE
PID 2288 wrote to memory of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe
PID 2288 wrote to memory of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe
PID 2288 wrote to memory of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe
PID 2288 wrote to memory of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe
PID 2288 wrote to memory of 2936	2288	765e7c536aaca5b29228227b7e4c0c54.exe	cmd.exe
PID 340 wrote to memory of 2360	340	csrss.exe	WMIADAP.EXE
PID 340 wrote to memory of 2360	340	csrss.exe	WMIADAP.EXE
PID 340 wrote to memory of 1620	340	csrss.exe	wmiprvse.exe
PID 340 wrote to memory of 1620	340	csrss.exe	wmiprvse.exe

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:340

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies WinLogon for persistence
PID:1196

C:\Users\Admin\AppData\Local\Temp\765e7c536aaca5b29228227b7e4c0c54.exe
"C:\Users\Admin\AppData\Local\Temp\765e7c536aaca5b29228227b7e4c0c54.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2288

C:\Users\Admin\AppData\Local\a98ee895\X
*0*28*43a04d09*69.64.52.10:53
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe"
3⤵
- Deletes itself
PID:2936

C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2360

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -Embedding
1⤵
PID:1620

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\a98ee895\X
Filesize
38KB

MD5
72de2dadaf875e2fd7614e100419033c

SHA1
5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

SHA256
c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

SHA512
e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

Download Submit
\Windows\System32\consrv.dll
Filesize
29KB

MD5
1149c1bd71248a9d170e4568fb08df30

SHA1
6f77f183d65709901f476c5d6eebaed060a495f9

SHA256
c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

SHA512
9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

Download Submit
\systemroot\assembly\tmp\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}
Filesize
2KB

MD5
840290827ac3652b26105649df454770

SHA1
3fb27e2a4cf094e56cd0a111ea85a753ad8ef27a

SHA256
cfba1f8ed24d4cbae51e14a582b03b950d346292809f90c038e2446e25ce662a

SHA512
2bb6fe7a370c37b1f4c54d4a375069ccd2621506045335e1f9c47f6f4d39495f17af83e1ee8f84dd3b2ee7f7d6415c15cbb7b8325cd4e20832bb42d0d796087c

Download Submit
memory/340-27-0x0000000000E40000-0x0000000000E4B000-memory.dmp

Filesize
44KB

Download
memory/340-43-0x0000000002500000-0x0000000002502000-memory.dmp

Filesize
8KB

Download
memory/340-17-0x0000000000E40000-0x0000000000E4B000-memory.dmp

Filesize
44KB

Download
memory/340-26-0x0000000002500000-0x0000000002502000-memory.dmp

Filesize
8KB

Download
memory/1196-3-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1196-12-0x0000000002500000-0x0000000002502000-memory.dmp

Filesize
8KB

Download
memory/1196-36-0x0000000002530000-0x000000000253B000-memory.dmp

Filesize
44KB

Download
memory/1196-32-0x0000000002530000-0x000000000253B000-memory.dmp

Filesize
44KB

Download
memory/1196-28-0x0000000002530000-0x000000000253B000-memory.dmp

Filesize
44KB

Download
memory/1196-38-0x0000000000E40000-0x0000000000E4B000-memory.dmp

Filesize
44KB

Download
memory/1196-39-0x0000000002540000-0x000000000254B000-memory.dmp

Filesize
44KB

Download
memory/1196-37-0x0000000002540000-0x000000000254B000-memory.dmp

Filesize
44KB

Download
memory/1196-7-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1196-11-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1196-44-0x0000000000E40000-0x0000000000E4B000-memory.dmp

Filesize
44KB

Download
memory/2288-1-0x0000000030670000-0x00000000306C2000-memory.dmp

Filesize
328KB

Download
memory/2288-42-0x0000000030670000-0x00000000306C2000-memory.dmp

Filesize
328KB

Download
memory/2288-41-0x0000000000410000-0x0000000000510000-memory.dmp

Filesize
1024KB

Download
memory/2288-40-0x0000000030670000-0x00000000306C2000-memory.dmp

Filesize
328KB

Download
memory/2288-2-0x0000000000410000-0x0000000000510000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads