8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a

Analysis

max time kernel
84s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09/06/2023, 19:36

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General

Target

8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe
Size

3.6MB
MD5

dc63b110ac821fdc82aa0d677eddc6ce
SHA1

cfa3c89099d3aca68ac3a74faea5026313567507
SHA256

8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a
SHA512

83476dbecb33611e2575abca346afee94486d849c659dcb94f5d65fc536a1d3f28a33fc0ce5ba037c77b19559fe7f3413df13ef208e532f8c60c5bc99fb04f42
SSDEEP

49152:Xm3yI4nAzyuSwIbFLOAkGy3zdnErPSCTomFDS+BHEuSlVnPgIQ6TUZl:QKIWFLOAkGkzdnEVomFHKnPRTql

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4812	ClientDaemon.exe
4652	PcAssit.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\U:	PcAssit.exe
File opened (read-only)	\??\V:	PcAssit.exe
File opened (read-only)	\??\B:	PcAssit.exe
File opened (read-only)	\??\I:	PcAssit.exe
File opened (read-only)	\??\L:	PcAssit.exe
File opened (read-only)	\??\P:	PcAssit.exe
File opened (read-only)	\??\R:	PcAssit.exe
File opened (read-only)	\??\Y:	PcAssit.exe
File opened (read-only)	\??\Z:	PcAssit.exe
File opened (read-only)	\??\E:	PcAssit.exe
File opened (read-only)	\??\J:	PcAssit.exe
File opened (read-only)	\??\M:	PcAssit.exe
File opened (read-only)	\??\N:	PcAssit.exe
File opened (read-only)	\??\X:	PcAssit.exe
File opened (read-only)	\??\H:	PcAssit.exe
File opened (read-only)	\??\T:	PcAssit.exe
File opened (read-only)	\??\W:	PcAssit.exe
File opened (read-only)	\??\S:	PcAssit.exe
File opened (read-only)	\??\F:	PcAssit.exe
File opened (read-only)	\??\G:	PcAssit.exe
File opened (read-only)	\??\K:	PcAssit.exe
File opened (read-only)	\??\O:	PcAssit.exe
File opened (read-only)	\??\Q:	PcAssit.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	PcAssit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	PcAssit.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3908	8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe
3908	8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe
4652	PcAssit.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4652	PcAssit.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 4812	3908	8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe	84
PID 3908 wrote to memory of 4812	3908	8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe	84
PID 4812 wrote to memory of 4652	4812	ClientDaemon.exe	85
PID 4812 wrote to memory of 4652	4812	ClientDaemon.exe	85
PID 4812 wrote to memory of 4652	4812	ClientDaemon.exe	85

C:\Users\Admin\AppData\Local\Temp\8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe
"C:\Users\Admin\AppData\Local\Temp\8dd776527dffd631e8aea18ee4514f66afbae3371ab07cfc68df3e162c182d3a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3908
- C:\recovery\ClientDaemon.exe
  C:\recovery\ClientDaemon.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4812
- - C:\recovery\PcAssit.exe
    "C:\recovery\PcAssit.exe"
    3⤵
    - Executes dropped EXE
    - Enumerates connected drives
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:4652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Recovery\ClientDaemon.exe

Filesize
200KB

MD5
9ea5c430bba7600bdad6d0ffb6d01a4d

SHA1
97698db2d796f49ec45a611470e70a1e115f25a8

SHA256
3d0b5ef8d36d3794311129c70888867ca7ce7b846e52e6e6d7bf0b8fd3738516

SHA512
fb00d9eab5b82787796f5ebf237a8e121d3bf02e5ba0f5440ceecc86193b80412d360fc398c5a4de36085af8c58eec9afa3c196e0208ce44c27bb776fd04e40d

Download Submit
C:\Recovery\PcAssit.exe

Filesize
2.4MB

MD5
29868c51a96ef259922959c0c7a0ad6a

SHA1
a51fc2db13b3a816e73c1d4115d334949eaeb934

SHA256
815013387e33d9ef5d17b619b455b0065fd75812356315a6ef72fcb80182323d

SHA512
d6462e157f0e681831a9864574654a9e983902566a8a2c6919cb40754883577c96ceca06139bb69a9467ef73790f82a3772bc8f0d088d263316bfff60303b9d8

Download Submit
C:\Recovery\cd.txt

Filesize
254KB

MD5
181f671ded2ba6a537884e8cbeb73680

SHA1
b75f9357f0af51e5f788fd98c3a36d55960d2550

SHA256
33ac308b2bbcf21bd6f810a8e941cbcafc0bc9ba0eadfbd68b84f6b7f0b1a3da

SHA512
6ec0187537731cfa9b4ec6dc5bf69b3fed9669a9b03c6a1c0ed1712296e59420ec775ad77add7b9324bba097df7aeb7f5fb052a96642b255bc0e69599cd135e4

Download Submit
C:\recovery\ClientDaemon.exe

Filesize
200KB

MD5
9ea5c430bba7600bdad6d0ffb6d01a4d

SHA1
97698db2d796f49ec45a611470e70a1e115f25a8

SHA256
3d0b5ef8d36d3794311129c70888867ca7ce7b846e52e6e6d7bf0b8fd3738516

SHA512
fb00d9eab5b82787796f5ebf237a8e121d3bf02e5ba0f5440ceecc86193b80412d360fc398c5a4de36085af8c58eec9afa3c196e0208ce44c27bb776fd04e40d

Download Submit
C:\recovery\PcAssit.exe

Filesize
2.4MB

MD5
29868c51a96ef259922959c0c7a0ad6a

SHA1
a51fc2db13b3a816e73c1d4115d334949eaeb934

SHA256
815013387e33d9ef5d17b619b455b0065fd75812356315a6ef72fcb80182323d

SHA512
d6462e157f0e681831a9864574654a9e983902566a8a2c6919cb40754883577c96ceca06139bb69a9467ef73790f82a3772bc8f0d088d263316bfff60303b9d8

Download Submit
memory/4652-143-0x0000000000660000-0x00000000006A8000-memory.dmp

Filesize
288KB

Download
memory/4652-144-0x0000000000660000-0x00000000006A8000-memory.dmp

Filesize
288KB

Download
memory/4652-146-0x0000000000660000-0x00000000006A8000-memory.dmp

Filesize
288KB

Download
memory/4652-147-0x0000000000660000-0x00000000006A8000-memory.dmp

Filesize
288KB

Download
memory/4652-148-0x0000000000660000-0x00000000006A8000-memory.dmp

Filesize
288KB

Download