quasar | d2d3f197a13bdd19a00bc0a2e1de1704f3103142d723b0a6a0ab522aa0bd4524

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 00:13

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General

Target

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
Size

656KB
MD5

a4e04fcc301833211359e575150cc7cc
SHA1

815d3f4eb2029ec80408bea43fb1e1febadadaf6
SHA256

d2d3f197a13bdd19a00bc0a2e1de1704f3103142d723b0a6a0ab522aa0bd4524
SHA512

82ec43e69b86c26aec4f2b22e25301259f9ec00fdb1e9b3c67699a71dac04d1b6148f1a01f0922832b99d631ae5e292cf020a6e0054ddaf056a25b1b49add376
SSDEEP

12288:k5bTxmvjcBEEnpMuWtlVQOGKxWd1zmFCWNshg78cBhjr2JWH3Qx02U:6bTxmvjanpRy2K8d1zmI4shgP5rxHgxQ

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/5616-2468-0x0000000000400000-0x0000000000484000-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:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVA = "\"C:\\Users\\Admin\\AppData\\Local\\NVA.exe\""	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1576 set thread context of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96

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:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exea4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

pid	Process
1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exea4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

description	pid	Process
Token: SeDebugPrivilege	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
Token: SeDebugPrivilege	5616	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96
PID 1576 wrote to memory of 5616	1576	a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a4e04fcc301833211359e575150cc7cc_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:1576
- C:\Users\Admin\AppData\Local\Temp\a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5616

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\a4e04fcc301833211359e575150cc7cc_JaffaCakes118.exe.log

Filesize
1KB

MD5
b5291f3dcf2c13784e09a057f2e43d13

SHA1
fbb72f4b04269e0d35b1d9c29d02d63dbc7ad07e

SHA256
ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce

SHA512
11c89caac425bccaa24e2bb24c6f2b4e6d6863278bf8a5304a42bb44475b08ca586e09143e7d5b14db7f1cd9adacd5358769e0d999dc348073431031067bd4d4

Download Submit
memory/1576-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/1576-1-0x00000000006C0000-0x000000000076A000-memory.dmp

Filesize
680KB

Download
memory/1576-2-0x0000000005680000-0x0000000005C24000-memory.dmp

Filesize
5.6MB

Download
memory/1576-3-0x00000000051E0000-0x0000000005272000-memory.dmp

Filesize
584KB

Download
memory/1576-4-0x0000000005140000-0x000000000514A000-memory.dmp

Filesize
40KB

Download
memory/1576-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1576-6-0x00000000064B0000-0x0000000006526000-memory.dmp

Filesize
472KB

Download
memory/1576-7-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/1576-8-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1576-9-0x0000000006430000-0x00000000064B0000-memory.dmp

Filesize
512KB

Download
memory/1576-10-0x0000000005650000-0x000000000566E000-memory.dmp

Filesize
120KB

Download
memory/1576-11-0x00000000066A0000-0x000000000671C000-memory.dmp

Filesize
496KB

Download
memory/1576-15-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-29-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-75-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-73-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-71-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-69-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-67-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-65-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-61-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-59-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-57-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-55-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-53-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-51-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-49-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-45-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-43-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-41-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-39-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-37-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-35-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-33-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-27-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-25-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-23-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-21-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-19-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-17-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-63-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-47-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-31-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-13-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-12-0x00000000066A0000-0x0000000006715000-memory.dmp

Filesize
468KB

Download
memory/1576-2470-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5616-2469-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5616-2468-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5616-2471-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5616-2472-0x0000000006670000-0x0000000006C88000-memory.dmp

Filesize
6.1MB

Download
memory/5616-2473-0x00000000058C0000-0x0000000005910000-memory.dmp

Filesize
320KB

Download
memory/5616-2474-0x00000000061E0000-0x0000000006292000-memory.dmp

Filesize
712KB

Download
memory/5616-2475-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download