stealc | 6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb

General

Target

6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
Size

218KB
MD5

cf267f31af942869a51ff10d3cadb637
SHA1

6c612523c12cd2a0e71deb7114427f6656cd58dc
SHA256

6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb
SHA512

36dd1d8c70f042ceb111cd6456d70a1fd7e83764441748216421fed83e2ffeea2fcd842c700c09226a5bb07a61f1c3948afcc0b10a07dd5fa827575bc0b43fd4
SSDEEP

3072:qUBTqPKGYOrEQAQB0fzahcaFnztzmrl9JrMw9ja2bwiOp:qKqPKGYOrEzQBXtnzsr54w9j/bwiO

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.26

Attributes

url_path
/f993692117a3fda2.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detect binaries embedding considerable number of MFA browser extension IDs. 3 IoCs

resource	yara_rule
behavioral2/memory/4160-52-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4160-87-0x0000000002CC0000-0x0000000002DC0000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4160-92-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 3 IoCs

resource	yara_rule
behavioral2/memory/4160-52-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4160-87-0x0000000002CC0000-0x0000000002DC0000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4160-92-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral2/memory/4160-52-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/4160-92-0x0000000000400000-0x0000000002B60000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	KKKKEHJKFC.exe

Executes dropped EXE 1 IoCs

pid	Process
1724	KKKKEHJKFC.exe

Loads dropped DLL 2 IoCs

pid	Process
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.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 1 IoCs

pid	pid_target	Process	procid_target
1860	4160	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4948	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 1992	4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe	92
PID 4160 wrote to memory of 1992	4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe	92
PID 4160 wrote to memory of 1992	4160	6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe	92
PID 1992 wrote to memory of 1724	1992	cmd.exe	96
PID 1992 wrote to memory of 1724	1992	cmd.exe	96
PID 1992 wrote to memory of 1724	1992	cmd.exe	96
PID 1724 wrote to memory of 3780	1724	KKKKEHJKFC.exe	98
PID 1724 wrote to memory of 3780	1724	KKKKEHJKFC.exe	98
PID 1724 wrote to memory of 3780	1724	KKKKEHJKFC.exe	98
PID 3780 wrote to memory of 4948	3780	cmd.exe	100
PID 3780 wrote to memory of 4948	3780	cmd.exe	100
PID 3780 wrote to memory of 4948	3780	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
"C:\Users\Admin\AppData\Local\Temp\6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKKKEHJKFC.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Users\Admin\AppData\Local\Temp\KKKKEHJKFC.exe
    "C:\Users\Admin\AppData\Local\Temp\KKKKEHJKFC.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1724
  - - 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\KKKKEHJKFC.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3780
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:4948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 2396
  2⤵
  - Program crash
  PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4160 -ip 4160
1⤵
PID:2788

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

3

T1012

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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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\KKKKEHJKFC.exe

Filesize
106KB

MD5
fe380780b5c35bd6d54541791151c2be

SHA1
7fe3a583cf91474c733f85cebf3c857682e269e1

SHA256
b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

SHA512
ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

Download Submit
memory/1724-94-0x0000000071CF0000-0x00000000724A0000-memory.dmp

Filesize
7.7MB

Download
memory/1724-90-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/1724-89-0x0000000071CF0000-0x00000000724A0000-memory.dmp

Filesize
7.7MB

Download
memory/1724-88-0x0000000000DE0000-0x0000000000E00000-memory.dmp

Filesize
128KB

Download
memory/4160-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4160-87-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

Filesize
1024KB

Download
memory/4160-52-0x0000000000400000-0x0000000002B60000-memory.dmp

Filesize
39.4MB

Download
memory/4160-1-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

Filesize
1024KB

Download
memory/4160-3-0x0000000000400000-0x0000000002B60000-memory.dmp

Filesize
39.4MB

Download
memory/4160-92-0x0000000000400000-0x0000000002B60000-memory.dmp

Filesize
39.4MB

Download
memory/4160-2-0x00000000048A0000-0x00000000048C7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads