bitrat | 01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426 | Triage

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-en-20211208
submitted
21-12-2021 21:56

Sharing

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General

Target

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
Size

2.7MB
MD5

42efa39082d113d675bc63909a07d619
SHA1

71dd8678250e4bab3da90d3b0f51b5b444322a9e
SHA256

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426
SHA512

965c70807905687a9bc801a52f9c8d986fa6bdf9ddf6505609423eece9df63235fc0332b7f68e392f19e030f1e2688a64b26443c4295163f0e51ce4aa7317321

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.35

C2

publiquilla.linkpc.net:9092

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
System32dllwin
install_file
Systemwin32077273dll.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 5 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/984-61-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/984-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/984-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/984-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/984-67-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\Systemwin32077273dll = "C:\\Users\\Admin\\AppData\\Local\\System32dllwin\\Systemwin32077273dll.exe"	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

pid	process
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

description	pid	process	target process
PID 1460 set thread context of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious behavior: RenamesItself 7 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

pid	process
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

description	pid	process
Token: SeDebugPrivilege	984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
Token: SeShutdownPrivilege	984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

pid	process
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
984	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

description	pid	process	target process
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
PID 1460 wrote to memory of 984	1460	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe	01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe

C:\Users\Admin\AppData\Local\Temp\01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
"C:\Users\Admin\AppData\Local\Temp\01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1460

C:\Users\Admin\AppData\Local\Temp\01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe
"C:\Users\Admin\AppData\Local\Temp\01033e294faecb37e41c01525574ff033890eccc799175858049556e27e4b426.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/984-64-0x00000000007E23B0-mapping.dmp

Download
memory/984-60-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/984-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/984-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/984-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/984-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/984-66-0x00000000751B1000-0x00000000751B3000-memory.dmp

Filesize
8KB

Download
memory/984-67-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1460-56-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

Filesize
4KB

Download
memory/1460-57-0x00000000004B0000-0x00000000004C4000-memory.dmp

Filesize
80KB

Download
memory/1460-58-0x00000000058E0000-0x0000000005ABC000-memory.dmp

Filesize
1.9MB

Download
memory/1460-59-0x0000000008D10000-0x0000000008E9D000-memory.dmp

Filesize
1.6MB

Download
memory/1460-54-0x00000000012F0000-0x00000000012F1000-memory.dmp

Filesize
4KB

Download