63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26

General

Target

63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe
Size

120KB
MD5

8f3224c97f8005c4c699f9ec6726d088
SHA1

2d7fa4a9ce69392e618cb1b074ef624cea3d07f4
SHA256

63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26
SHA512

45ad7b1c3795fa5dc161a11650053c1243624a87a8b8bf524975c05fd4923ffeaabac9224ae4def15483246dc67f754c012b7567131e56db3bb784eee2d2cf05
SSDEEP

3072:swR5g46PJh1OKknKplw5FmxoQmh2mRaOTnz:ZR2zBOKknU25PP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3540	¶¯Ì¬ÃÜ±£.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wind0ws\Parameters\ServiceDll = "C:\\Documents and Settings\\Local Server\\wanmei.dll"	¶¯Ì¬ÃÜ±£.exe

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe

Loads dropped DLL 2 IoCs

pid	Process
4892	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe
4628	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\FuckYou.txt	¶¯Ì¬ÃÜ±£.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
2448	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3540	¶¯Ì¬ÃÜ±£.exe
3540	¶¯Ì¬ÃÜ±£.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4628	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3540	¶¯Ì¬ÃÜ±£.exe
Token: SeRestorePrivilege	3540	¶¯Ì¬ÃÜ±£.exe
Token: SeDebugPrivilege	2448	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 3540	4892	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe	84
PID 4892 wrote to memory of 3540	4892	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe	84
PID 4892 wrote to memory of 3540	4892	63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe	84
PID 3540 wrote to memory of 2448	3540	¶¯Ì¬ÃÜ±£.exe	85
PID 3540 wrote to memory of 2448	3540	¶¯Ì¬ÃÜ±£.exe	85
PID 3540 wrote to memory of 2448	3540	¶¯Ì¬ÃÜ±£.exe	85

C:\Users\Admin\AppData\Local\Temp\63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe
"C:\Users\Admin\AppData\Local\Temp\63c60784bc81ddfdeeb5a973fdcfc30adf0cdca98195556fb9bc3b201a470e26.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Local\Temp\¶¯Ì¬ÃÜ±£.exe
  "C:\Users\Admin\AppData\Local\Temp\¶¯Ì¬ÃÜ±£.exe"
  2⤵
  - Executes dropped EXE
  - Sets DLL path for service in the registry
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3540
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /t /im ZhuDongFangYu.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2448

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
PID:4628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nssDB33.tmp\System.dll

Filesize
10KB

MD5
0c8ea8e6637bbf8408104e672d78ba45

SHA1
c231c7acaf9abb7da93f28e1b71bed164d57103e

SHA256
509a93177a7ae130bc3b6b5ec3236c7aa0811b8b86f8ab3442c65fdf8ff85b1f

SHA512
ee763a3cdbbba3b28e6a903ac942c7228bd8e54b19de21d6187e481f2916d833d9b9800e5ac2998f4aa26274cdfb20a8bfdd10f00f2a15d37bcc529b617e1f28

Download Submit
C:\Users\Admin\AppData\Local\Temp\¶¯Ì¬ÃÜ±£.exe

Filesize
128KB

MD5
beaea5635620f8f418f2d0f7cd7214f4

SHA1
cfa7222030a3c878abff82149ef2f0f899638b2b

SHA256
43e865c58891a45fd048c33936881f5b6cccbf4da68e7889cf72ea5229d7895f

SHA512
7ea078a04b375f20f22216fc4475bb4ebc11c602510b5661c3e4216d5a05e2457674e2b3c7e59e5ef1b39e4fce644a1f3f09cbc945258606bb696d9eed294e7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\¶¯Ì¬ÃÜ±£.exe

Filesize
128KB

MD5
beaea5635620f8f418f2d0f7cd7214f4

SHA1
cfa7222030a3c878abff82149ef2f0f899638b2b

SHA256
43e865c58891a45fd048c33936881f5b6cccbf4da68e7889cf72ea5229d7895f

SHA512
7ea078a04b375f20f22216fc4475bb4ebc11c602510b5661c3e4216d5a05e2457674e2b3c7e59e5ef1b39e4fce644a1f3f09cbc945258606bb696d9eed294e7c

Download Submit
C:\Users\Local Server\wanmei.dll

Filesize
105KB

MD5
67e11a234e9f1c96fd81f1695c5303c2

SHA1
c74ccbc2f80dcfe004bab8a8a98a4826ce0fdb15

SHA256
be4d73c747e922f5357808f87968a4565947def73313ea12347ed21b1fd71413

SHA512
c837fb849cd809225fa448309fd656cec66bb0b52d17eda3ead8a5b1d3062d7cbcc45f7a6a7482f5d28bef55bfb17e99e7dffc0c676c84bdfa4054238f816b9f

Download Submit
\??\c:\documents and settings\local server\wanmei.dll

Filesize
105KB

MD5
67e11a234e9f1c96fd81f1695c5303c2

SHA1
c74ccbc2f80dcfe004bab8a8a98a4826ce0fdb15

SHA256
be4d73c747e922f5357808f87968a4565947def73313ea12347ed21b1fd71413

SHA512
c837fb849cd809225fa448309fd656cec66bb0b52d17eda3ead8a5b1d3062d7cbcc45f7a6a7482f5d28bef55bfb17e99e7dffc0c676c84bdfa4054238f816b9f

Download Submit
memory/4628-139-0x0000000010000000-0x000000001001F000-memory.dmp

Filesize
124KB

Download
memory/4628-140-0x0000000010000000-0x000000001001F000-memory.dmp

Filesize
124KB

Download

Analysis

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