zebrocy | e43ae92ee7ac5cc76535867872ba06b1b96135babafedddccd3d58f38c2b882b

Analysis

max time kernel
141s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 00:10

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General

Target

e1509c589fde2272c0d20072dfe09722_JaffaCakes118.dll
Size

5.1MB
MD5

e1509c589fde2272c0d20072dfe09722
SHA1

81a3044e92d14f6abf9bc813e1e030f6baaed4f2
SHA256

e43ae92ee7ac5cc76535867872ba06b1b96135babafedddccd3d58f38c2b882b
SHA512

a83b77e326225401e0d5ff450d0563909741a42274daffcfa2ccdc736b1e244825a0024756506877e0591599c2ae57094c0edbc3bcf3bb1fdabe1a8ea4baca55
SSDEEP

98304:7xlrOi7+ogZnV34M3B2uXSfjbIWPQCr1tXYJZmaqD/v1:7xB7+PqAIFfjbIWPQCr1tXYJYaqr1

Score

10^/10

zebrocy backdoor discovery trojan

Malware Config

Extracted

Family

zebrocy

http://37.120.140.215/develop/resources.php

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 2 IoCs

resource	yara_rule
behavioral1/memory/2336-0-0x0000000061300000-0x0000000061833000-memory.dmp	Zebrocy
behavioral1/memory/2336-10-0x0000000061300000-0x0000000061833000-memory.dmp	Zebrocy

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	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29
PID 2300 wrote to memory of 2336	2300	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e1509c589fde2272c0d20072dfe09722_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e1509c589fde2272c0d20072dfe09722_JaffaCakes118.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336

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/2336-0-0x0000000061300000-0x0000000061833000-memory.dmp

Filesize
5.2MB

Download
memory/2336-10-0x0000000061300000-0x0000000061833000-memory.dmp

Filesize
5.2MB

Download