metastealer | f644bef519fc0243633d13f18c97c96d76b95b6f2cbad2a2507fb8177b7e4d1d

Resubmissions

04-05-2022 07:23

220504-h7vw9adca7 10

Analysis

max time kernel
496s
max time network
501s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
04-05-2022 07:23

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General

Target

notice.exe
Size

350.0MB
MD5

e74116c5efc7492fa74334a39e22afe8
SHA1

393e81a3d525e8b582355d855d2c367047e4e0b0
SHA256

f644bef519fc0243633d13f18c97c96d76b95b6f2cbad2a2507fb8177b7e4d1d
SHA512

64999f89597bed1857252b98ffd03fba27c9514af0fb430de3913a58e035d619823bcb45a4aa5ec89abdf807f89f9db57d3856e97885144992d03804d79a2352

Score

10^/10

metastealer stealer

Malware Config

Extracted

Family

metastealer

http://transfer.sh/get/qT523D/Wlniornez_Dablvtrq.bmp

Signatures

Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer

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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	notice.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3796	1976	WerFault.exe	81

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1248	powershell.exe
1248	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1248	powershell.exe
Token: SeDebugPrivilege	1976	notice.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1248	1976	notice.exe	82
PID 1976 wrote to memory of 1248	1976	notice.exe	82
PID 1976 wrote to memory of 1248	1976	notice.exe	82

C:\Users\Admin\AppData\Local\Temp\notice.exe
"C:\Users\Admin\AppData\Local\Temp\notice.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 2056
  2⤵
  - Program crash
  PID:3796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1976 -ip 1976
1⤵
PID:60

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1248-132-0x00000000027F0000-0x0000000002826000-memory.dmp

Filesize
216KB

Download
memory/1248-133-0x0000000004F30000-0x0000000005558000-memory.dmp

Filesize
6.2MB

Download
memory/1248-134-0x0000000004CE0000-0x0000000004D02000-memory.dmp

Filesize
136KB

Download
memory/1248-135-0x0000000004E80000-0x0000000004EE6000-memory.dmp

Filesize
408KB

Download
memory/1248-136-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/1248-137-0x0000000005E20000-0x0000000005E3E000-memory.dmp

Filesize
120KB

Download
memory/1248-138-0x0000000007490000-0x0000000007B0A000-memory.dmp

Filesize
6.5MB

Download
memory/1248-139-0x0000000006340000-0x000000000635A000-memory.dmp

Filesize
104KB

Download
memory/1976-130-0x00000000006F0000-0x0000000000718000-memory.dmp

Filesize
160KB

Download