quasar | 15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909

General

Target

15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe
Size

786KB
MD5

9c4894438cde81f24f332662f3c2aae0
SHA1

0f4da3fd7ff45e65a13cfbc4268be143f9e9d7dd
SHA256

15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909
SHA512

9448231e8619904ce115fd8b66488eef462f010dced19fc4ef2f327474b9019cac779e28b4fda2dda4cf8f0be4295b53014911831213a25eb925c9a555c1a30e
SSDEEP

12288:SBMYGfKGK1IisTAkFTw7Z5LnZfHKVN88r0o5+593ZBIop2Eg6oXHQSSjl1HU:SxI1MnZfHKw8Be3ZGx36oXw9l10

Score

10^/10

quasar office04 discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

judicial.con-ip.com:53890

Mutex

cfa7b428-b778-4bda-8f78-8027f433ab1e

Attributes

encryption_key
BCB3D7E61EBFADA295CE4E370B5FC34D54533AA8
install_name
fdxfdx.exe
log_directory
Logs
reconnect_delay
3000
startup_key
fdxnvidia
subdirectory
SubDir

Signatures

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

Quasar payload 1 IoCs

resource	yara_rule
behavioral2/memory/1392-2-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 224 set thread context of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98

System Location Discovery: System Language Discovery 1 TTPs 6 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1988	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1988	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1392	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 224 wrote to memory of 1392	224	15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe	98
PID 1392 wrote to memory of 4712	1392	AppLaunch.exe	101
PID 1392 wrote to memory of 4712	1392	AppLaunch.exe	101
PID 1392 wrote to memory of 4712	1392	AppLaunch.exe	101
PID 4712 wrote to memory of 4304	4712	cmd.exe	103
PID 4712 wrote to memory of 4304	4712	cmd.exe	103
PID 4712 wrote to memory of 4304	4712	cmd.exe	103
PID 4712 wrote to memory of 1988	4712	cmd.exe	104
PID 4712 wrote to memory of 1988	4712	cmd.exe	104
PID 4712 wrote to memory of 1988	4712	cmd.exe	104
PID 4712 wrote to memory of 2920	4712	cmd.exe	106
PID 4712 wrote to memory of 2920	4712	cmd.exe	106
PID 4712 wrote to memory of 2920	4712	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe
"C:\Users\Admin\AppData\Local\Temp\15a67fe07697ed47c8307e23665050ae7959575266053f3161019e96fb7fc909N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1392
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8CCAHMea9uBu.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4712
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:4304
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 10 localhost
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1988
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\8CCAHMea9uBu.bat

Filesize
218B

MD5
d6c59fff07c74bd3fb122f79698880c5

SHA1
829b529adc486134414de914d0d4cb73b59451da

SHA256
55d1fc8a01d2443628f605a93fe71bbde0a2d6e2365a4cb10d7d29a41074ec13

SHA512
52fb20211d98e5fdb8adf42448270e5087b39dc36d96e1ba6d0948f718c0434bfc5535baef19f1c299d97a6fc7d5067bbd31a2212f5a33f457f3aa6ea94a4cee

Download Submit
memory/1392-2-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1392-3-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1392-4-0x0000000005560000-0x0000000005B04000-memory.dmp

Filesize
5.6MB

Download
memory/1392-5-0x00000000050D0000-0x0000000005162000-memory.dmp

Filesize
584KB

Download
memory/1392-6-0x00000000742E0000-0x0000000074A90000-memory.dmp

Filesize
7.7MB

Download
memory/1392-7-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/1392-8-0x0000000006130000-0x0000000006748000-memory.dmp

Filesize
6.1MB

Download
memory/1392-9-0x0000000005B10000-0x0000000005B60000-memory.dmp

Filesize
320KB

Download
memory/1392-10-0x0000000005D80000-0x0000000005E32000-memory.dmp

Filesize
712KB

Download
memory/1392-15-0x00000000742E0000-0x0000000074A90000-memory.dmp

Filesize
7.7MB

Download

Analysis

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