quasar | 0ad767569575baeeba2c76169fe9389b805364dd3a71e5e8d818dea5a94acc50

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 03:41

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General

Target

Pogingenc.exe
Size

6.0MB
MD5

4d05ea664b21ab95e888f456afa1a7a8
SHA1

b4ddeb5b9c83cd8ff02004f52751d1298212a37c
SHA256

0ad767569575baeeba2c76169fe9389b805364dd3a71e5e8d818dea5a94acc50
SHA512

05825d447257267ab9079f15f31565dc7bf88dc6293ccf9ca93bee67a63ef1a68ee29b5a54d33336a4864e326b90239fc34b13831e1243b1390a96f5214aad20
SSDEEP

98304:aBDvEtGdg2pgJTJSCYLCWcpc2tlbWvKUeR+T8u0:aBDt9gJTXYGWcRtlivOA

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

93.123.85.108:4782

Mutex

e14b8f59-979b-4ebf-8602-dd3c4d6c301e

Attributes

encryption_key
534734397C0FA9A1D28F061AD75DF4100BFF5787
install_name
Msconfig.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

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

Quasar payload 5 IoCs

resource	yara_rule
behavioral1/memory/2724-14-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2724-12-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2724-10-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2724-9-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2724-16-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

pid	Process
2344	mstools.exe
928	mstools.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2724	2932	Pogingenc.exe	28
PID 2344 set thread context of 2784	2344	mstools.exe	40

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1800	schtasks.exe
2488	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	vbc.exe
Token: SeDebugPrivilege	2784	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2724	vbc.exe

Suspicious use of WriteProcessMemory 58 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2724	2932	Pogingenc.exe	28
PID 2932 wrote to memory of 2720	2932	Pogingenc.exe	29
PID 2932 wrote to memory of 2720	2932	Pogingenc.exe	29
PID 2932 wrote to memory of 2720	2932	Pogingenc.exe	29
PID 2932 wrote to memory of 2720	2932	Pogingenc.exe	29
PID 2932 wrote to memory of 2740	2932	Pogingenc.exe	31
PID 2932 wrote to memory of 2740	2932	Pogingenc.exe	31
PID 2932 wrote to memory of 2740	2932	Pogingenc.exe	31
PID 2932 wrote to memory of 2740	2932	Pogingenc.exe	31
PID 2740 wrote to memory of 2488	2740	cmd.exe	33
PID 2740 wrote to memory of 2488	2740	cmd.exe	33
PID 2740 wrote to memory of 2488	2740	cmd.exe	33
PID 2740 wrote to memory of 2488	2740	cmd.exe	33
PID 2932 wrote to memory of 2476	2932	Pogingenc.exe	34
PID 2932 wrote to memory of 2476	2932	Pogingenc.exe	34
PID 2932 wrote to memory of 2476	2932	Pogingenc.exe	34
PID 2932 wrote to memory of 2476	2932	Pogingenc.exe	34
PID 2692 wrote to memory of 2344	2692	taskeng.exe	39
PID 2692 wrote to memory of 2344	2692	taskeng.exe	39
PID 2692 wrote to memory of 2344	2692	taskeng.exe	39
PID 2692 wrote to memory of 2344	2692	taskeng.exe	39
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 2784	2344	mstools.exe	40
PID 2344 wrote to memory of 1668	2344	mstools.exe	41
PID 2344 wrote to memory of 1668	2344	mstools.exe	41
PID 2344 wrote to memory of 1668	2344	mstools.exe	41
PID 2344 wrote to memory of 1668	2344	mstools.exe	41
PID 2344 wrote to memory of 1256	2344	mstools.exe	43
PID 2344 wrote to memory of 1256	2344	mstools.exe	43
PID 2344 wrote to memory of 1256	2344	mstools.exe	43
PID 2344 wrote to memory of 1256	2344	mstools.exe	43
PID 1256 wrote to memory of 1800	1256	cmd.exe	45
PID 1256 wrote to memory of 1800	1256	cmd.exe	45
PID 1256 wrote to memory of 1800	1256	cmd.exe	45
PID 1256 wrote to memory of 1800	1256	cmd.exe	45
PID 2344 wrote to memory of 1732	2344	mstools.exe	46
PID 2344 wrote to memory of 1732	2344	mstools.exe	46
PID 2344 wrote to memory of 1732	2344	mstools.exe	46
PID 2344 wrote to memory of 1732	2344	mstools.exe	46
PID 2692 wrote to memory of 928	2692	taskeng.exe	48
PID 2692 wrote to memory of 928	2692	taskeng.exe	48
PID 2692 wrote to memory of 928	2692	taskeng.exe	48
PID 2692 wrote to memory of 928	2692	taskeng.exe	48

C:\Users\Admin\AppData\Local\Temp\Pogingenc.exe
"C:\Users\Admin\AppData\Local\Temp\Pogingenc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Local\Temp\mstools"
  2⤵
  PID:2720
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\Pogingenc.exe" "C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe"
  2⤵
  PID:2476

C:\Windows\system32\taskeng.exe
taskeng.exe {776116C9-9C41-49B8-A913-7850802DE16E} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe
  C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2344
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2784
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Local\Temp\mstools"
    3⤵
    PID:1668
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe'" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1256
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe'" /f
      4⤵
      Creates scheduled task(s)
      PID:1800
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe" "C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe"
    3⤵
    PID:1732
- C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe
  C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe
  2⤵
  - Executes dropped EXE
  PID:928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mstools\mstools.exe

Filesize
6.0MB

MD5
4d05ea664b21ab95e888f456afa1a7a8

SHA1
b4ddeb5b9c83cd8ff02004f52751d1298212a37c

SHA256
0ad767569575baeeba2c76169fe9389b805364dd3a71e5e8d818dea5a94acc50

SHA512
05825d447257267ab9079f15f31565dc7bf88dc6293ccf9ca93bee67a63ef1a68ee29b5a54d33336a4864e326b90239fc34b13831e1243b1390a96f5214aad20

Download Submit
memory/2344-24-0x0000000001340000-0x000000000166C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-7-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-21-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-6-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-17-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-14-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-12-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-16-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-10-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2724-9-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2932-0-0x00000000010A0000-0x00000000013CC000-memory.dmp

Filesize
3.2MB

Download
memory/2932-3-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-20-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-4-0x0000000000BE0000-0x0000000000C20000-memory.dmp

Filesize
256KB

Download
memory/2932-2-0x0000000000BE0000-0x0000000000C20000-memory.dmp

Filesize
256KB

Download
memory/2932-1-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads