zebrocy | 60d1562ddf254bf40fcc2503fc2f0a78867907028f7662937221a481c3b8f33b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 22:50

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General

Target

2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe
Size

2.7MB
MD5

60a695cdb8dd7bab484cf4676ef0296d
SHA1

63654366314bd7150e45b5ca43cf5c2d9d9d3a9c
SHA256

60d1562ddf254bf40fcc2503fc2f0a78867907028f7662937221a481c3b8f33b
SHA512

f6bb6505b2a1496f893f131d8d911d44ef49cfb6956196b9f954ac6d1f04729b2bdb1d8dc0e80dd3756d81e95528817d147ac7230e5e2de688347a284a90bd1e
SSDEEP

24576:X4ybxkJlcXgszkiwIm9seW6sCtTlXc/ut5Mdrp7hSgsuLu5RPVeVbV2qK7zAq/Hm:F6cQsoBISsB/LujVDA0/X+

Score

10^/10

zebrocy backdoor discovery trojan upx

Malware Config

Signatures

Zebrocy
Zebrocy is a backdoor created by Sofacy threat group and has multiple variants developed in different languages.
trojan backdoor zebrocy

Zebrocy Go Variant 1 IoCs

resource	yara_rule
behavioral1/memory/2236-1-0x0000000000400000-0x00000000006BA000-memory.dmp	Zebrocy

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2236-1-0x0000000000400000-0x00000000006BA000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process
2060	2236	WerFault.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2060	2236	2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe	30
PID 2236 wrote to memory of 2060	2236	2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe	30
PID 2236 wrote to memory of 2060	2236	2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe	30
PID 2236 wrote to memory of 2060	2236	2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_60a695cdb8dd7bab484cf4676ef0296d_snatch.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 36
  2⤵
  - Program crash
  PID:2060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2236-1-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

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