bitrat | 4aa1ce5bc42ed8633df8586392afaec84df54ee37ce8878184f840ddc62879ba

General

Target

ESTADO PDF VER.exe
Size

5.6MB
MD5

ffa29931a560bb75dfe139efad4ca7d5
SHA1

17bef9ea751eee1ce97e0dce90dd473ae5625ecb
SHA256

4aa1ce5bc42ed8633df8586392afaec84df54ee37ce8878184f840ddc62879ba
SHA512

eec1d4e55fa75d8ff49681de82b0bba0a40202df66d54e416929481c9d0e315826c99d8fbee3e72cb580bac45245716faf3d52cf61846055c19ce94f377e3583
SSDEEP

24576:l+pONDPnta6Y9UfUMSR9iUFqNLcrLfQkF2uU5J9VF/08ixUoNQhGnD58fKj7m+Mp:RVdoLRHY7+UcniP/bAfKlG9r7sb

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

cmwuchisaa.con-ip.com:1880

Attributes

communication_password
202cb962ac59075b964b07152d234b70
install_dir
AppData
install_file
Discord.exe
tor_process
tor

Signatures

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

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1104-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-66-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-68-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-69-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-70-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-72-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1104-73-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

InstallUtil.exeESTADO PDF VER.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe"	InstallUtil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aakqa\\chrome.exe\""	ESTADO PDF VER.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

InstallUtil.exe

pid process

1104 InstallUtil.exe
1104 InstallUtil.exe
1104 InstallUtil.exe
1104 InstallUtil.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ESTADO PDF VER.exe

description pid process target process

PID 1128 set thread context of 1104 1128 ESTADO PDF VER.exe InstallUtil.exe
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 1 IoCs

Processes:

powershell.exe

pid process

2028 powershell.exe

pid	process
1104	InstallUtil.exe
1104	InstallUtil.exe
1104	InstallUtil.exe
1104	InstallUtil.exe

description	pid	process	target process
PID 1128 set thread context of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe

pid	process
2028	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exeESTADO PDF VER.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeDebugPrivilege	1128	ESTADO PDF VER.exe
Token: SeDebugPrivilege	1104	InstallUtil.exe
Token: SeShutdownPrivilege	1104	InstallUtil.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

InstallUtil.exe

pid process

1104 InstallUtil.exe
1104 InstallUtil.exe

pid	process
1104	InstallUtil.exe
1104	InstallUtil.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ESTADO PDF VER.exe

description	pid	process	target process
PID 1128 wrote to memory of 2028	1128	ESTADO PDF VER.exe	powershell.exe
PID 1128 wrote to memory of 2028	1128	ESTADO PDF VER.exe	powershell.exe
PID 1128 wrote to memory of 2028	1128	ESTADO PDF VER.exe	powershell.exe
PID 1128 wrote to memory of 2028	1128	ESTADO PDF VER.exe	powershell.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe
PID 1128 wrote to memory of 1104	1128	ESTADO PDF VER.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\ESTADO PDF VER.exe
"C:\Users\Admin\AppData\Local\Temp\ESTADO PDF VER.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2028

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1104-68-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-66-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-69-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-67-0x00000000007E2750-mapping.dmp

Download
memory/1104-73-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-70-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1104-72-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1128-56-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1128-55-0x0000000005280000-0x000000000548A000-memory.dmp

Filesize
2.0MB

Download
memory/1128-54-0x0000000000C60000-0x00000000011FA000-memory.dmp

Filesize
5.6MB

Download
memory/1128-57-0x0000000002600000-0x0000000002692000-memory.dmp

Filesize
584KB

Download
memory/2028-60-0x000000006FD90000-0x000000007033B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-58-0x0000000000000000-mapping.dmp

Download
memory/2028-61-0x000000006FD90000-0x000000007033B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads