quasar | 54e33e90fc6174e079fbb5d00abd7f3d2c8ad9bcc8c67910f3c21e4f31282aa0

General

Target

a6750a74736787e997cea380247a97f2_JaffaCakes118.exe
Size

485KB
MD5

a6750a74736787e997cea380247a97f2
SHA1

7d25daa8359e023f8bb3bdb4c4fa77c2eeb19195
SHA256

54e33e90fc6174e079fbb5d00abd7f3d2c8ad9bcc8c67910f3c21e4f31282aa0
SHA512

6d029e775fb53e086c4f97a4594c919c976a49a58ecd1495d7c007206c3ef01a7b4c650a792734b17ee291c68bb96bd1175d9d40e3c1226318bc8bffc7185b23
SSDEEP

12288:DVm5YyKReiCZp4o2ylxSyx9F7TPeBfoZ/mi:J8Yeimeyrr1elos

Score

10^/10

quasar venomrat svhost rat rootkit spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

svhost

C2

myconect.ddns.net:6606

Mutex

VNM_MUTEX_ND6PULLW5ZVLwo1nwR

Attributes

encryption_key
yaa63tXY4j55os5llHHd
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Venom Client Startup
subdirectory
SubDir

Signatures

Contains code to disable Windows Defender 2 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\$77-Venom.exe	disable_win_def
behavioral1/memory/1932-12-0x00000000000A0000-0x000000000012C000-memory.dmp	disable_win_def

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 2 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\$77-Venom.exe	family_quasar
behavioral1/memory/1932-12-0x00000000000A0000-0x000000000012C000-memory.dmp	family_quasar

VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
rat rootkit stealer venomrat
Executes dropped EXE 1 IoCs

Processes:

$77-Venom.exe

pid process

1932 $77-Venom.exe
Loads dropped DLL 1 IoCs

Processes:

a6750a74736787e997cea380247a97f2_JaffaCakes118.exe

pid process

1700 a6750a74736787e997cea380247a97f2_JaffaCakes118.exe
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-api.com
6 api.ipify.org
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

$77-Venom.exe

description pid process

Token: SeDebugPrivilege 1932 $77-Venom.exe
Token: SeDebugPrivilege 1932 $77-Venom.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

3044 DllHost.exe

pid	process
1932	$77-Venom.exe

pid	process
1700	a6750a74736787e997cea380247a97f2_JaffaCakes118.exe

flow	ioc
2	ip-api.com
6	api.ipify.org

description	pid	process
Token: SeDebugPrivilege	1932	$77-Venom.exe
Token: SeDebugPrivilege	1932	$77-Venom.exe

pid	process
3044	DllHost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a6750a74736787e997cea380247a97f2_JaffaCakes118.exe

description	pid	process	target process
PID 1700 wrote to memory of 1932	1700	a6750a74736787e997cea380247a97f2_JaffaCakes118.exe	$77-Venom.exe
PID 1700 wrote to memory of 1932	1700	a6750a74736787e997cea380247a97f2_JaffaCakes118.exe	$77-Venom.exe
PID 1700 wrote to memory of 1932	1700	a6750a74736787e997cea380247a97f2_JaffaCakes118.exe	$77-Venom.exe
PID 1700 wrote to memory of 1932	1700	a6750a74736787e997cea380247a97f2_JaffaCakes118.exe	$77-Venom.exe

C:\Users\Admin\AppData\Local\Temp\a6750a74736787e997cea380247a97f2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a6750a74736787e997cea380247a97f2_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Roaming\$77-Venom.exe
  "C:\Users\Admin\AppData\Roaming\$77-Venom.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OfE3PnhGoipa.bat" "
    3⤵
    PID:1792

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\OfE3PnhGoipa.bat

Filesize
203B

MD5
ea818353ada7bb98be700cd2a4003688

SHA1
bc4f6b261973418fea940889a7fcc72aebe9a81f

SHA256
a0da7d7385d05c327ea7c78dc2a14c04722d61f415c65eb3504c830ccf927de2

SHA512
dca42c463e6685c67e3edd73896e3b3e34548ebcd1a1707e35d5ebd0439165e3ad3f5796963036a45844d55788a55ebcc98aec621f18fa5b576742f006e43b2a

Download Submit
C:\Users\Admin\AppData\Roaming\shipoil.jpg

Filesize
30KB

MD5
7363f95e115ad5cb08d178430e46fb2b

SHA1
8d2ae220cc204de0c2f6aee25d77c99ed7003e18

SHA256
ee04486009e345f00c2c08ccea1231d57dff8213848612dc4d728d29b79ea93d

SHA512
6923284c9b813e80453486193a49fe526cdfa8013039d9b49a6f9ef706a1d615407e26b90c39f7af02ca7f387c893c476b3ef4ded0d00961d75c5b719d92ca5b

Download Submit
\Users\Admin\AppData\Roaming\$77-Venom.exe

Filesize
534KB

MD5
84c1dc6b428904cc2a6746653849df0f

SHA1
5cce4078427481f4d7456b5a4f3930ae6e706fb4

SHA256
bc24e3c5408fea0b6f9aa0deb56a4636a8d0b9a6054ff1033efa6ccfe04ba44a

SHA512
3b7a7607c3409b5ded563f2e1fcc0fa489c4465ab764d14a647b474968a025a95fa8ceb549fc70482b7b1dd935f66a41ada7b4910059786aafc870c5847a9245

Download Submit
memory/1700-0-0x0000000074CD1000-0x0000000074CD2000-memory.dmp

Filesize
4KB

Download
memory/1700-1-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/1700-2-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/1700-13-0x00000000046B0000-0x00000000046B2000-memory.dmp

Filesize
8KB

Download
memory/1700-15-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-11-0x0000000072BFE000-0x0000000072BFF000-memory.dmp

Filesize
4KB

Download
memory/1932-12-0x00000000000A0000-0x000000000012C000-memory.dmp

Filesize
560KB

Download
memory/1932-17-0x0000000072BFE000-0x0000000072BFF000-memory.dmp

Filesize
4KB

Download
memory/3044-14-0x0000000000160000-0x0000000000162000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads