quasar | 47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c

General

Target

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
Size

876KB
MD5

b86b4d4fd31a31c1f0928ceb0483021e
SHA1

05391d6db90e961e02d2b16166572e9061768282
SHA256

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c
SHA512

ea9b80462539b41d786d1566b71c847afe33adac8971016406bee37efa64f8f460d0578a9374cf3adeb9862047705f756eafb39d2a57746f56b7ad907f1922f4
SSDEEP

12288:6COzWsvIDqNc4Gqu7x5BRd6CMWMpFY0wjTyE9OXcg6VpUoME4KN6eclg5QUC:BOzxiqgjx5TddMWM0/83UDMTKgwC

Score

10^/10

quasar aoy discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

AOY

C2

87.120.120.27:61540

127.0.0.1:61540

87.121.86.205:61541

Mutex

QSR_MUTEX_NOCv4TURf46HbVbxyc

Attributes

encryption_key
fVsndNhImy9VosyZSQbQ
install_name
updates.exe
log_directory
Logs
reconnect_delay
4000
startup_key
Windows Update
subdirectory
Windows

Signatures

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

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3096-9-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

Processes:

updates.exeupdates.exe

pid	Process
1908	updates.exe
4596	updates.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
15	ip-api.com

Suspicious use of SetThreadContext 2 IoCs

Processes:

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exeupdates.exe

description	pid	Process	procid_target
PID 4196 set thread context of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 1908 set thread context of 4596	1908	updates.exe	90

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3604	4596	WerFault.exe	90

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exeschtasks.exeupdates.exe47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updates.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
3064	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exeupdates.exe

description	pid	Process
Token: SeDebugPrivilege	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
Token: SeDebugPrivilege	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
Token: SeDebugPrivilege	1908	updates.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exeupdates.exe

description	pid	Process	procid_target
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 4196 wrote to memory of 3096	4196	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	83
PID 3096 wrote to memory of 3064	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	85
PID 3096 wrote to memory of 3064	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	85
PID 3096 wrote to memory of 3064	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	85
PID 3096 wrote to memory of 1908	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	87
PID 3096 wrote to memory of 1908	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	87
PID 3096 wrote to memory of 1908	3096	47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe	87
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90
PID 1908 wrote to memory of 4596	1908	updates.exe	90

C:\Users\Admin\AppData\Local\Temp\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
"C:\Users\Admin\AppData\Local\Temp\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Users\Admin\AppData\Local\Temp\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
  C:\Users\Admin\AppData\Local\Temp\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3096
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3064
- - C:\Users\Admin\AppData\Roaming\Windows\updates.exe
    "C:\Users\Admin\AppData\Roaming\Windows\updates.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1908
  - - C:\Users\Admin\AppData\Roaming\Windows\updates.exe
      C:\Users\Admin\AppData\Roaming\Windows\updates.exe
      4⤵
      Executes dropped EXE
      PID:4596
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 80
        5⤵
        Program crash
        
        PID:3604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4596 -ip 4596
1⤵
PID:4504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c.exe.log

Filesize
706B

MD5
d95c58e609838928f0f49837cab7dfd2

SHA1
55e7139a1e3899195b92ed8771d1ca2c7d53c916

SHA256
0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

SHA512
405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

Download Submit
C:\Users\Admin\AppData\Roaming\Windows\updates.exe

Filesize
876KB

MD5
b86b4d4fd31a31c1f0928ceb0483021e

SHA1
05391d6db90e961e02d2b16166572e9061768282

SHA256
47a15a0aac65d13a6584ef7fc87a0cddb29fdf65c8a91953d34ab246526d119c

SHA512
ea9b80462539b41d786d1566b71c847afe33adac8971016406bee37efa64f8f460d0578a9374cf3adeb9862047705f756eafb39d2a57746f56b7ad907f1922f4

Download Submit
memory/1908-28-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/1908-24-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/1908-22-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-16-0x0000000006AE0000-0x0000000006B1C000-memory.dmp

Filesize
240KB

Download
memory/3096-15-0x0000000006460000-0x0000000006472000-memory.dmp

Filesize
72KB

Download
memory/3096-23-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-14-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/3096-9-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/3096-11-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-13-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-12-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-8-0x000000000B290000-0x000000000B296000-memory.dmp

Filesize
24KB

Download
memory/4196-6-0x000000000B8F0000-0x000000000BE94000-memory.dmp

Filesize
5.6MB

Download
memory/4196-0-0x000000007530E000-0x000000007530F000-memory.dmp

Filesize
4KB

Download
memory/4196-4-0x000000000B100000-0x000000000B206000-memory.dmp

Filesize
1.0MB

Download
memory/4196-5-0x000000000B2A0000-0x000000000B33C000-memory.dmp

Filesize
624KB

Download
memory/4196-3-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-7-0x000000000B340000-0x000000000B3D2000-memory.dmp

Filesize
584KB

Download
memory/4196-2-0x00000000033F0000-0x00000000033F6000-memory.dmp

Filesize
24KB

Download
memory/4196-1-0x0000000000F60000-0x0000000001040000-memory.dmp

Filesize
896KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads