bitrat | 76e7e27f4fcf15610764d121949f84e3b415376bfc5e88c08d85b613013ba87f

Analysis

max time kernel
147s
max time network
148s
platform
windows10_x64
resource
win10-en-20211104
submitted
17/11/2021, 09:32

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General

Target
Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe
Size 879KB
Sample211117-lhmfcsehbm
SHA256 76e7e27f4fcf15610764d121949f84e3b415376bfc5e88c08d85b613013ba87f
MD5 f5777784733a17e0b0a517f4d80df42d
SHA1 9f5901e7d60d3619dc27b6f7e124d0a3446c66a7
SHA512 3072b179b0dc6c747eae77c9852f469f9e3684475c0c36c3442ef7174a3e3dafe32ff92f41f449852f2d08514ed451ab75544503891335cd67c18a8b772d27c9
MD5 SHA1 SHA512

Score

10^/10

bitrat xenarmor collection password persistence recovery spyware stealer suricata trojan upx

Malware Config

Signatures

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

BitRAT Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4444-122-0x0000000072480000-0x0000000072864000-memory.dmp	family_bitrat
behavioral2/memory/4444-132-0x0000000072480000-0x0000000072864000-memory.dmp	family_bitrat

XenArmor Suite
XenArmor is as suite of password recovery tools for various application.
recovery password xenarmor
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000400000001abc9-147.dat	acprotect
behavioral2/files/0x000400000001abc9-148.dat	acprotect

Executes dropped EXE 2 IoCs

pid	Process
2672	0SqdhrQj.exe
2128	0SqdhrQj.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4444-122-0x0000000072480000-0x0000000072864000-memory.dmp	upx
behavioral2/memory/4444-132-0x0000000072480000-0x0000000072864000-memory.dmp	upx
behavioral2/memory/2672-136-0x0000000000400000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/2672-140-0x0000000000400000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/2672-145-0x0000000000400000-0x00000000008DC000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2128	0SqdhrQj.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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	0SqdhrQj.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yhcmvzmp = "C:\\Users\\Public\\Libraries\\Yhcmvzmp\\pmzvmchY.url"	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
4444	DpiScaling.exe
4444	DpiScaling.exe
4444	DpiScaling.exe
4444	DpiScaling.exe
4444	DpiScaling.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4444 set thread context of 2672	4444	DpiScaling.exe	82
PID 2672 set thread context of 2128	2672	0SqdhrQj.exe	83

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3204	reg.exe
420	reg.exe
2152	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2128	0SqdhrQj.exe
2128	0SqdhrQj.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4444	DpiScaling.exe
Token: SeDebugPrivilege	2128	0SqdhrQj.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4444	DpiScaling.exe
4444	DpiScaling.exe

Suspicious use of WriteProcessMemory 63 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4444	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	69
PID 4076 wrote to memory of 4536	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	70
PID 4076 wrote to memory of 4536	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	70
PID 4076 wrote to memory of 4536	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	70
PID 4536 wrote to memory of 3948	4536	cmd.exe	72
PID 4536 wrote to memory of 3948	4536	cmd.exe	72
PID 4536 wrote to memory of 3948	4536	cmd.exe	72
PID 3948 wrote to memory of 3204	3948	cmd.exe	74
PID 3948 wrote to memory of 3204	3948	cmd.exe	74
PID 3948 wrote to memory of 3204	3948	cmd.exe	74
PID 3948 wrote to memory of 420	3948	cmd.exe	75
PID 3948 wrote to memory of 420	3948	cmd.exe	75
PID 3948 wrote to memory of 420	3948	cmd.exe	75
PID 3948 wrote to memory of 592	3948	cmd.exe	76
PID 3948 wrote to memory of 592	3948	cmd.exe	76
PID 3948 wrote to memory of 592	3948	cmd.exe	76
PID 4076 wrote to memory of 1772	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	77
PID 4076 wrote to memory of 1772	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	77
PID 4076 wrote to memory of 1772	4076	Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe	77
PID 1772 wrote to memory of 2152	1772	cmd.exe	79
PID 1772 wrote to memory of 2152	1772	cmd.exe	79
PID 1772 wrote to memory of 2152	1772	cmd.exe	79
PID 4444 wrote to memory of 2668	4444	DpiScaling.exe	81
PID 4444 wrote to memory of 2668	4444	DpiScaling.exe	81
PID 4444 wrote to memory of 2668	4444	DpiScaling.exe	81
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 4444 wrote to memory of 2672	4444	DpiScaling.exe	82
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83
PID 2672 wrote to memory of 2128	2672	0SqdhrQj.exe	83

C:\Users\Admin\AppData\Local\Temp\Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe
"C:\Users\Admin\AppData\Local\Temp\Yhcmvzmpvugqazayqyzancaeziqveylhbf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Windows\SysWOW64\DpiScaling.exe
  C:\Windows\System32\DpiScaling.exe
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\SysWOW64\DpiScaling.exe
    -a "C:\Users\Admin\AppData\Local\705c9b50\plg\0SqdhrQj.json"
    3⤵
    PID:2668
- - C:\Users\Admin\AppData\Local\Temp\0SqdhrQj.exe
    -a "C:\Users\Admin\AppData\Local\705c9b50\plg\0SqdhrQj.json"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2672
  - - C:\Users\Admin\AppData\Local\Temp\0SqdhrQj.exe
      -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Accesses Microsoft Outlook accounts
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2128
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4536
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3948
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:3204
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:420
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:592
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:2152

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

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2128-141-0x0000000000400000-0x00000000006FE000-memory.dmp

Download

memory/2128-146-0x0000000000400000-0x00000000006FE000-memory.dmp

Download

memory/2128-144-0x0000000000400000-0x00000000006FE000-memory.dmp

Download

memory/2672-136-0x0000000000400000-0x00000000008DC000-memory.dmp

Download

memory/2672-140-0x0000000000400000-0x00000000008DC000-memory.dmp

Download

memory/2672-145-0x0000000000400000-0x00000000008DC000-memory.dmp

Download

memory/4076-118-0x0000000000760000-0x0000000000761000-memory.dmp

Download

memory/4076-119-0x0000000002381000-0x0000000002395000-memory.dmp

Download

memory/4444-127-0x0000000002F70000-0x0000000002F71000-memory.dmp

Download

memory/4444-124-0x0000000002E50000-0x0000000002E51000-memory.dmp

Download

memory/4444-126-0x0000000002F10000-0x0000000002F11000-memory.dmp

Download

memory/4444-132-0x0000000072480000-0x0000000072864000-memory.dmp

Download

memory/4444-122-0x0000000072480000-0x0000000072864000-memory.dmp

Download