xehook | 17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e

General

Target

17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe
Size

273KB
MD5

e795115169cc800de0392d6a675d58fd
SHA1

8dd75837e360ba1cb8acf5a3d348dd020a5da482
SHA256

17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e
SHA512

5fb6543e91de175bd365462a1cc87d6772e43b0effd3757b3e408b08a4de5a004de9a85e7f1d09578fa3bc6b6486c5f5016c1b879496582dbb39b2e62e168f38
SSDEEP

6144:s/wl9dobdtMJNPX459l2/FpnovRWf1RdSxWbkHg6O0:HdoRtMJRkQp2MY0QO0

Score

10^/10

xehook spyware stealer

Malware Config

Extracted

Family

xehook

C2

https://unotree.ru/

https://aiwhcpoaw.ru/

Signatures

Detect Xehook Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1336-0-0x0000000000400000-0x000000000041C000-memory.dmp	family_xehook
behavioral2/memory/4752-1-0x0000000000760000-0x00000000007A8000-memory.dmp	family_xehook
behavioral2/memory/4752-2-0x0000000000760000-0x00000000007A8000-memory.dmp	family_xehook

Xehook stealer
Xehook is an infostealer written in C#.
stealer xehook

Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs

resource	yara_rule
behavioral2/memory/1336-0-0x0000000000400000-0x000000000041C000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4752-1-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4752-2-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/1336-5-0x0000000005550000-0x0000000005560000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs

resource	yara_rule
behavioral2/memory/1336-0-0x0000000000400000-0x000000000041C000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4752-1-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4752-2-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/1336-5-0x0000000005550000-0x0000000005560000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs

resource	yara_rule
behavioral2/memory/1336-0-0x0000000000400000-0x000000000041C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral2/memory/4752-1-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral2/memory/4752-2-0x0000000000760000-0x00000000007A8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	RegAsm.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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1336	RegAsm.exe
1756	powershell.exe
1756	powershell.exe
1756	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	RegAsm.exe
Token: SeDebugPrivilege	1756	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 4752 wrote to memory of 1336	4752	17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe	85
PID 1336 wrote to memory of 1756	1336	RegAsm.exe	100
PID 1336 wrote to memory of 1756	1336	RegAsm.exe	100
PID 1336 wrote to memory of 1756	1336	RegAsm.exe	100

C:\Users\Admin\AppData\Local\Temp\17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe
"C:\Users\Admin\AppData\Local\Temp\17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1336
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "Start-Process 'C:\Users\Admin\AppData\Roaming\YOO59CEROP.exe'"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1oox0lma.afi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\YOO59CEROP.exe

Filesize
70KB

MD5
58b5336ba7b73f1567aaa3df0cb8ec9a

SHA1
c9e38d9be368e1f8cd623b54f232babac517d434

SHA256
3423136e210372cbe6a5ac941d201fe65c098173beb6d38bc73dc864433d361e

SHA512
819486251f70fff5b73769527c64d1831f4a71cde2c1f614584695ebe7ab07ba927deab02bd523f6998df57bd6d1ab7bd150f034248591ec80aac53e40c9f846

Download Submit
memory/1336-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1336-3-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/1336-4-0x0000000005940000-0x0000000005EE4000-memory.dmp

Filesize
5.6MB

Download
memory/1336-5-0x0000000005550000-0x0000000005560000-memory.dmp

Filesize
64KB

Download
memory/1336-6-0x0000000006360000-0x00000000063C6000-memory.dmp

Filesize
408KB

Download
memory/1336-7-0x0000000006950000-0x00000000069E2000-memory.dmp

Filesize
584KB

Download
memory/1336-9-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/1336-10-0x0000000005550000-0x0000000005560000-memory.dmp

Filesize
64KB

Download
memory/1336-15-0x0000000074E00000-0x00000000755B0000-memory.dmp

Filesize
7.7MB

Download
memory/1756-18-0x00000000028B0000-0x00000000028E6000-memory.dmp

Filesize
216KB

Download
memory/1756-36-0x0000000006F60000-0x0000000006FF6000-memory.dmp

Filesize
600KB

Download
memory/1756-20-0x0000000004B00000-0x0000000004B10000-memory.dmp

Filesize
64KB

Download
memory/1756-21-0x0000000005140000-0x0000000005768000-memory.dmp

Filesize
6.2MB

Download
memory/1756-42-0x0000000074E10000-0x00000000755C0000-memory.dmp

Filesize
7.7MB

Download
memory/1756-22-0x0000000004FC0000-0x0000000004FE2000-memory.dmp

Filesize
136KB

Download
memory/1756-32-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/1756-33-0x00000000059C0000-0x0000000005D14000-memory.dmp

Filesize
3.3MB

Download
memory/1756-34-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

Filesize
120KB

Download
memory/1756-35-0x0000000005E00000-0x0000000005E4C000-memory.dmp

Filesize
304KB

Download
memory/1756-19-0x0000000074E10000-0x00000000755C0000-memory.dmp

Filesize
7.7MB

Download
memory/1756-37-0x0000000006E70000-0x0000000006E8A000-memory.dmp

Filesize
104KB

Download
memory/1756-38-0x0000000006EF0000-0x0000000006F12000-memory.dmp

Filesize
136KB

Download
memory/4752-1-0x0000000000760000-0x00000000007A8000-memory.dmp

Filesize
288KB

Download
memory/4752-2-0x0000000000760000-0x00000000007A8000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing