bitrat | 1d49c795e503a5c5c57885ae435b84f2d00a342ea122110a075b4df7b3c4ddd2

Analysis

max time kernel
149s
max time network
151s
platform
windows10_x64
resource
win10-en
submitted
09/09/2021, 07:24

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General

Target
7b690a7a78aebde26cbed65ac2cb281b.exe
Size 4.0MB
Sample210909-h8ftqaahfp
SHA256 1d49c795e503a5c5c57885ae435b84f2d00a342ea122110a075b4df7b3c4ddd2
MD5 7b690a7a78aebde26cbed65ac2cb281b
SHA1 1ed3e88708b4e5becbbc0c3e9e4c328077e46e73
SHA512 7b2c793693513125dfe3d66a4a33a85f6504c7784160d46be74b54e68e9e4be8089111bcce137784a773788a3ff187b59496c278b97d98c518a7f47f1d6559d9
MD5 SHA1 SHA512

Score

10^/10

bitrat quasar xenarmor qua3 password persistence recovery spyware stealer trojan upx

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

qua3

yz.videomarket.eu:1972

Mutex

QSR_MUTEX_dQvCIzmEBFgxmMuIEE

Attributes

encryption_key
Txsm23EgD4NQfzpXFJzP
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

BitRAT Payload 3 IoCs

resource	yara_rule
behavioral2/memory/684-117-0x0000000000400000-0x00000000007CE000-memory.dmp	family_bitrat
behavioral2/memory/684-118-0x000000000068A488-mapping.dmp	family_bitrat
behavioral2/memory/684-119-0x0000000000400000-0x00000000007CE000-memory.dmp	family_bitrat

Quasar Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2588-125-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar
behavioral2/memory/2588-126-0x00000000004581CE-mapping.dmp	family_quasar
behavioral2/memory/2588-131-0x00000000056B0000-0x0000000005BAE000-memory.dmp	family_quasar

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
XenArmor Suite
XenArmor is as suite of password recovery tools for various application.
recovery password xenarmor

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000001ab18-141.dat	acprotect
behavioral2/files/0x000600000001ab18-142.dat	acprotect

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
3836	xzHf3GCXFKotYJW3.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1336-136-0x0000000000400000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/1336-138-0x0000000000400000-0x00000000008DC000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2460	7b690a7a78aebde26cbed65ac2cb281b.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run	7b690a7a78aebde26cbed65ac2cb281b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\fgmn = "C:\\Users\\Admin\\AppData\\Roaming\\ghnmk\\tyui.exe"	7b690a7a78aebde26cbed65ac2cb281b.exe
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run	xzHf3GCXFKotYJW3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\af = "C:\\Users\\Admin\\AppData\\Roaming\\an\\al.exe"	xzHf3GCXFKotYJW3.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.

flow	ioc
20	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
684	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3548 set thread context of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3836 set thread context of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 684 set thread context of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 1336 set thread context of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2460	7b690a7a78aebde26cbed65ac2cb281b.exe
2460	7b690a7a78aebde26cbed65ac2cb281b.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeShutdownPrivilege	684	7b690a7a78aebde26cbed65ac2cb281b.exe
Token: SeDebugPrivilege	2588	RegAsm.exe
Token: SeDebugPrivilege	2460	7b690a7a78aebde26cbed65ac2cb281b.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3548	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe
684	7b690a7a78aebde26cbed65ac2cb281b.exe
3836	xzHf3GCXFKotYJW3.exe
2588	RegAsm.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 3548 wrote to memory of 684	3548	7b690a7a78aebde26cbed65ac2cb281b.exe	75
PID 684 wrote to memory of 3836	684	7b690a7a78aebde26cbed65ac2cb281b.exe	80
PID 684 wrote to memory of 3836	684	7b690a7a78aebde26cbed65ac2cb281b.exe	80
PID 684 wrote to memory of 3836	684	7b690a7a78aebde26cbed65ac2cb281b.exe	80
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 3836 wrote to memory of 2588	3836	xzHf3GCXFKotYJW3.exe	82
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 684 wrote to memory of 1336	684	7b690a7a78aebde26cbed65ac2cb281b.exe	83
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84
PID 1336 wrote to memory of 2460	1336	7b690a7a78aebde26cbed65ac2cb281b.exe	84

C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe
"C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe
  "C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:684
- - C:\Users\Admin\AppData\Local\Temp\xzHf3GCXFKotYJW3.exe
    "C:\Users\Admin\AppData\Local\Temp\xzHf3GCXFKotYJW3.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3836
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2588
- - C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe
    -a "C:\Users\Admin\AppData\Local\d670d454\plg\hngEC0vq.json"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1336
  - - C:\Users\Admin\AppData\Local\Temp\7b690a7a78aebde26cbed65ac2cb281b.exe
      -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
      4⤵
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/684-117-0x0000000000400000-0x00000000007CE000-memory.dmp

Download

memory/684-119-0x0000000000400000-0x00000000007CE000-memory.dmp

Download

memory/1336-136-0x0000000000400000-0x00000000008DC000-memory.dmp

Download

memory/1336-138-0x0000000000400000-0x00000000008DC000-memory.dmp

Download

memory/2460-143-0x0000000000400000-0x00000000006FE000-memory.dmp

Download

memory/2460-139-0x0000000000400000-0x00000000006FE000-memory.dmp

Download

memory/2588-125-0x0000000000400000-0x000000000045E000-memory.dmp

Download

memory/2588-135-0x0000000006AC0000-0x0000000006AC1000-memory.dmp

Download

memory/2588-134-0x0000000006760000-0x0000000006761000-memory.dmp

Download

memory/2588-133-0x0000000005B70000-0x0000000005B71000-memory.dmp

Download

memory/2588-132-0x0000000005820000-0x0000000005821000-memory.dmp

Download

memory/2588-131-0x00000000056B0000-0x0000000005BAE000-memory.dmp

Download

memory/2588-130-0x0000000005600000-0x0000000005601000-memory.dmp

Download

memory/2588-129-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

Download