stealc | 10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888

General

Target

10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe
Size

357KB
MD5

6ed7e7911b46776b354014ad6c21ba87
SHA1

ec4d60ecff4f6bd833223772764f8964f99d9060
SHA256

10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888
SHA512

73a13dc15e22c7b7ee7210bae2e97db7b0f5da3ae0e8a313a09e7906f059a7c838b02744095c673c0cd09467e2b065dcaf037e872e5a7d2cb5c4b9c01c3db6e2
SSDEEP

3072:5gS2a/UW3QQy398a7KULXHptxQrmENw2MArCsv8oeGt3Qf2BoQq/rjQ/pug6QdS3:V2dWAL30CH/ur/NwXS8o9tzBo31

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

C2

http://aidandylan.top

Attributes

url_path
/3886d2276f6914c4.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

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-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe

Executes dropped EXE 1 IoCs

pid	Process
644	4491903778.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
656	2984	WerFault.exe	84

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	4491903778.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4491903778.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3680	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
644	4491903778.exe
644	4491903778.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3680	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 4652	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	98
PID 2984 wrote to memory of 4652	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	98
PID 2984 wrote to memory of 4652	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	98
PID 4652 wrote to memory of 644	4652	cmd.exe	100
PID 4652 wrote to memory of 644	4652	cmd.exe	100
PID 4652 wrote to memory of 644	4652	cmd.exe	100
PID 2984 wrote to memory of 2360	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	103
PID 2984 wrote to memory of 2360	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	103
PID 2984 wrote to memory of 2360	2984	10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe	103
PID 2360 wrote to memory of 3680	2360	cmd.exe	105
PID 2360 wrote to memory of 3680	2360	cmd.exe	105
PID 2360 wrote to memory of 3680	2360	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe
"C:\Users\Admin\AppData\Local\Temp\10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\4491903778.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4652
- - C:\Users\Admin\AppData\Local\Temp\4491903778.exe
    "C:\Users\Admin\AppData\Local\Temp\4491903778.exe"
    3⤵
    - Executes dropped EXE
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "10772f8eccc708617a6c82a512984ed60d06acc6d9d0333336f4d0bbdaee3888.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 1524
  2⤵
  - Program crash
  PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2984 -ip 2984
1⤵
PID:5076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\4491903778.exe

Filesize
288KB

MD5
161027d749e3f255390b76cf086afbb0

SHA1
8336cb5fe12bd6c763f5f2164933a197ef7cd8fe

SHA256
0248cbee92165d5c709fe3aabc50a2b1d13c3ace46fe99c43d29e68b6e3c7e3d

SHA512
1dd89749a1989b8ef61b9690afa16437b6d68fe97a19d5f9a14470214ca1c68adf3dc51657289c82e913a7d977e8c5d1ae2c01bd26fc7e47afcbb395b9cf5d60

Download Submit
C:\Users\Admin\AppData\Local\Temp\4491903778.exe

Filesize
288KB

MD5
161027d749e3f255390b76cf086afbb0

SHA1
8336cb5fe12bd6c763f5f2164933a197ef7cd8fe

SHA256
0248cbee92165d5c709fe3aabc50a2b1d13c3ace46fe99c43d29e68b6e3c7e3d

SHA512
1dd89749a1989b8ef61b9690afa16437b6d68fe97a19d5f9a14470214ca1c68adf3dc51657289c82e913a7d977e8c5d1ae2c01bd26fc7e47afcbb395b9cf5d60

Download Submit
memory/644-30-0x00000000023D0000-0x00000000023EB000-memory.dmp

Filesize
108KB

Download
memory/644-29-0x00000000022D0000-0x00000000023D0000-memory.dmp

Filesize
1024KB

Download
memory/644-32-0x0000000000400000-0x0000000002285000-memory.dmp

Filesize
30.5MB

Download
memory/644-34-0x0000000000400000-0x0000000002285000-memory.dmp

Filesize
30.5MB

Download
memory/644-35-0x00000000022D0000-0x00000000023D0000-memory.dmp

Filesize
1024KB

Download
memory/2984-5-0x00000000024E0000-0x00000000025E0000-memory.dmp

Filesize
1024KB

Download
memory/2984-6-0x0000000000400000-0x0000000002296000-memory.dmp

Filesize
30.6MB

Download
memory/2984-7-0x0000000003FE0000-0x000000000401E000-memory.dmp

Filesize
248KB

Download
memory/2984-3-0x0000000000400000-0x0000000002296000-memory.dmp

Filesize
30.6MB

Download
memory/2984-2-0x0000000003FE0000-0x000000000401E000-memory.dmp

Filesize
248KB

Download
memory/2984-1-0x00000000024E0000-0x00000000025E0000-memory.dmp

Filesize
1024KB

Download
memory/2984-31-0x0000000000400000-0x0000000002296000-memory.dmp

Filesize
30.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads