quasar | cccbae1f5f6c7792c6a54cc84fff79dbdd24f1e9b54527143316541d7375aee5

Analysis

max time kernel
126s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 04:42

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General

Target

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
Size

641KB
MD5

b6d96813a4a0aaa4749f4f3643cf50d2
SHA1

1a92c6fd729b7a5d864a9fcc99c07b8edabf06a3
SHA256

cccbae1f5f6c7792c6a54cc84fff79dbdd24f1e9b54527143316541d7375aee5
SHA512

a2aeac591fb63b20abaadde09d4862ebd502368f865ead001c1288be7dd7df5f35ac31747c840f0e4c465ce4dc9e178d99a046bd31d636e6978e2d3cd4cfc06b
SSDEEP

12288:k2XhbUIb4tvvg/2SsajramsSZW9RdWUT5ug8+Xu5+GZH2U:hpU/t82SsaLsWdUT55+5rZH2U

Score

10^/10

quasar office04w discovery persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04w

societyf500.ddns.net:5490

Mutex

f4264bdc-b486-4a30-a042-2bcfb907b3c7

Attributes

encryption_key
0204DFA093E27B72F1617CCEA6076BCCE5D0A482
install_name
dwmq.exe
log_directory
Logs
reconnect_delay
3000
startup_key
dwmq
subdirectory
explorer

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/5764-2346-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVA = "\"C:\\Users\\Admin\\AppData\\Local\\NVA.exe\""	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2588 set thread context of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90

System Location Discovery: System Language Discovery 1 TTPs 2 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:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exeb6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

pid	Process
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exeb6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

description	pid	Process
Token: SeDebugPrivilege	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
Token: SeDebugPrivilege	5764	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2588 wrote to memory of 5744	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	89
PID 2588 wrote to memory of 5744	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	89
PID 2588 wrote to memory of 5744	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	89
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90
PID 2588 wrote to memory of 5764	2588	b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
  2⤵
  PID:5744
- C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b6d96813a4a0aaa4749f4f3643cf50d2_JaffaCakes118.exe.log

Filesize
1KB

MD5
7ebe314bf617dc3e48b995a6c352740c

SHA1
538f643b7b30f9231a3035c448607f767527a870

SHA256
48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8

SHA512
0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e

Download Submit
memory/2588-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/2588-1-0x0000000000600000-0x00000000006A6000-memory.dmp

Filesize
664KB

Download
memory/2588-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/2588-3-0x0000000005160000-0x00000000051F2000-memory.dmp

Filesize
584KB

Download
memory/2588-4-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/2588-5-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/2588-6-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/2588-7-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/2588-8-0x0000000007950000-0x00000000079D0000-memory.dmp

Filesize
512KB

Download
memory/2588-9-0x0000000007BD0000-0x0000000007C48000-memory.dmp

Filesize
480KB

Download
memory/2588-21-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-31-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-73-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-69-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-67-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-65-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-63-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-61-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-59-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-57-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-55-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-51-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-49-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-47-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-45-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-43-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-41-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-39-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-35-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-33-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-29-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-27-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-25-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-23-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-19-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-17-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-15-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-13-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-71-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-53-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-37-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-11-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-10-0x0000000007BD0000-0x0000000007C42000-memory.dmp

Filesize
456KB

Download
memory/2588-2348-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/5764-2346-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5764-2347-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/5764-2349-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/5764-2350-0x0000000005F80000-0x0000000006598000-memory.dmp

Filesize
6.1MB

Download
memory/5764-2351-0x0000000005240000-0x0000000005290000-memory.dmp

Filesize
320KB

Download
memory/5764-2352-0x0000000005A40000-0x0000000005AF2000-memory.dmp

Filesize
712KB

Download
memory/5764-2353-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download