stealc | 126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1

General

Target

126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe
Size

376KB
MD5

e160420822e2d0bdc4ab56f9b1a77344
SHA1

acf0227175eb9f8af5ef12aae5d2667bd2bbd3c6
SHA256

126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1
SHA512

2b87c0e8f26318727fc705d4e8b96ffb546a111d1bc78f8f2f2734df9fe43b110639e8d17e079ad2703f36fe3ec2398e2f9d6bfacbf4283af1b3119e2676f331
SSDEEP

6144:jMyX1m/BOCQklHNULGy08NO7f+gRpgVgyDSpTTIf80dHSeiazqZ+PhTzD4:Qc1mpOC1lHNit0GgRpSN6vaHHRiazqYa

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes

url_path
/3cd2b41cbde8fc9c.php

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
4676	u2ig.0.exe
3872	HCBGDGCAAK.exe

Loads dropped DLL 2 IoCs

pid	Process
4676	u2ig.0.exe
4676	u2ig.0.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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 2 IoCs

pid	pid_target	Process	procid_target
4924	4676	WerFault.exe	77
4996	3256	WerFault.exe	76

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	u2ig.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u2ig.0.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4372	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4676	u2ig.0.exe
4676	u2ig.0.exe
4676	u2ig.0.exe
4676	u2ig.0.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 4676	3256	126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe	77
PID 3256 wrote to memory of 4676	3256	126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe	77
PID 3256 wrote to memory of 4676	3256	126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe	77
PID 4676 wrote to memory of 908	4676	u2ig.0.exe	80
PID 4676 wrote to memory of 908	4676	u2ig.0.exe	80
PID 4676 wrote to memory of 908	4676	u2ig.0.exe	80
PID 908 wrote to memory of 3872	908	cmd.exe	84
PID 908 wrote to memory of 3872	908	cmd.exe	84
PID 908 wrote to memory of 3872	908	cmd.exe	84
PID 3872 wrote to memory of 3160	3872	HCBGDGCAAK.exe	86
PID 3872 wrote to memory of 3160	3872	HCBGDGCAAK.exe	86
PID 3872 wrote to memory of 3160	3872	HCBGDGCAAK.exe	86
PID 3160 wrote to memory of 4372	3160	cmd.exe	88
PID 3160 wrote to memory of 4372	3160	cmd.exe	88
PID 3160 wrote to memory of 4372	3160	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe
"C:\Users\Admin\AppData\Local\Temp\126a28243b217a99a5e9884580186a9b4a34e92569ecaa52b3aae74d5a588df1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\Temp\u2ig.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u2ig.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4676
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HCBGDGCAAK.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:908
  - - C:\Users\Admin\AppData\Local\Temp\HCBGDGCAAK.exe
      "C:\Users\Admin\AppData\Local\Temp\HCBGDGCAAK.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3872
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HCBGDGCAAK.exe
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3160
      - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        6⤵
        Runs ping.exe
        
        PID:4372
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4676 -s 2468
    3⤵
    - Program crash
    PID:4924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 1612
  2⤵
  - Program crash
  PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4676 -ip 4676
1⤵
PID:3800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3256 -ip 3256
1⤵
PID:680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Are.docx

Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

Filesize
106KB

MD5
fe380780b5c35bd6d54541791151c2be

SHA1
7fe3a583cf91474c733f85cebf3c857682e269e1

SHA256
b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

SHA512
ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2ig.0.exe

Filesize
234KB

MD5
3d521a11d1822f84d70538f5c28776aa

SHA1
38a5a02d92a571b6221c47f70ed1a525398f2045

SHA256
f68fa1e88e23bdb94d540d6bd591478c2a80029f704bbad76507e1da2e9d4826

SHA512
7467484e5b0501897240e902026678e2f48fdec9f689a5aa421a2d2e5141bccb7f0f6fa5ac80b3369dc900d713a6ad6ee9af35f5ac71375bec767ed201a71ed1

Download Submit
memory/3256-2-0x00000000026D0000-0x000000000273C000-memory.dmp

Filesize
432KB

Download
memory/3256-3-0x0000000000400000-0x000000000087B000-memory.dmp

Filesize
4.5MB

Download
memory/3256-110-0x0000000000400000-0x000000000087B000-memory.dmp

Filesize
4.5MB

Download
memory/3256-108-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

Filesize
1024KB

Download
memory/3256-102-0x00000000026D0000-0x000000000273C000-memory.dmp

Filesize
432KB

Download
memory/3256-1-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

Filesize
1024KB

Download
memory/3256-64-0x0000000000400000-0x000000000087B000-memory.dmp

Filesize
4.5MB

Download
memory/3872-101-0x0000000071930000-0x00000000720E1000-memory.dmp

Filesize
7.7MB

Download
memory/3872-100-0x0000000000320000-0x0000000000340000-memory.dmp

Filesize
128KB

Download
memory/3872-103-0x0000000004F80000-0x0000000004F90000-memory.dmp

Filesize
64KB

Download
memory/3872-106-0x0000000071930000-0x00000000720E1000-memory.dmp

Filesize
7.7MB

Download
memory/4676-99-0x0000000000400000-0x0000000000857000-memory.dmp

Filesize
4.3MB

Download
memory/4676-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4676-15-0x0000000000400000-0x0000000000857000-memory.dmp

Filesize
4.3MB

Download
memory/4676-14-0x0000000000AC0000-0x0000000000AE7000-memory.dmp

Filesize
156KB

Download
memory/4676-13-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

Filesize
1024KB

Download

Analysis

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