bitrat | 4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca | Triage

Analysis

max time kernel
152s
max time network
152s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 15:03

Sharing

Report Analysis Logs

General

Target

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
Size

2.3MB
MD5

b86f69bea6756d81e88179af29846335
SHA1

b9e8f176864b86256cb3f96f86ba808032974344
SHA256

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca
SHA512

eadf7c72683c40ebcb2582d68c91094888aa5d8cb52c7e859d06a1ff3f24e6a2fd9375100c1dfb836e56991ca429e4f8e1908704432b94a5f7a8a87577962f14

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.35

C2

publiquilla.linkpc.net:9090

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
windowssecurirysercivehealth
install_file
windowssecurirysercive.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/324-61-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/324-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/324-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/324-64-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/324-66-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\windowssecurirysercive = "C:\\Users\\Admin\\AppData\\Local\\windowssecurirysercivehealth\\windowssecurirysercive.exe"	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

pid	process
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

description	pid	process	target process
PID 1720 set thread context of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

pid process

324 4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

description	pid	process
Token: SeDebugPrivilege	324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
Token: SeShutdownPrivilege	324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

pid	process
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
324	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

description	pid	process	target process
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
PID 1720 wrote to memory of 324	1720	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe	4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe

C:\Users\Admin\AppData\Local\Temp\4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
"C:\Users\Admin\AppData\Local\Temp\4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1720

C:\Users\Admin\AppData\Local\Temp\4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe
"C:\Users\Admin\AppData\Local\Temp\4b39d9d9a3733742ec2e76bfe107b5e43e2d041df1662def76a3857e906aeeca.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:324

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/324-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-60-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-64-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-66-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/324-67-0x0000000000401000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1720-55-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1720-56-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/1720-57-0x0000000000340000-0x000000000035C000-memory.dmp

Filesize
112KB

Download
memory/1720-58-0x0000000008130000-0x0000000008302000-memory.dmp

Filesize
1.8MB

Download
memory/1720-59-0x000000000B8A0000-0x000000000BA20000-memory.dmp

Filesize
1.5MB

Download
memory/1720-54-0x0000000001320000-0x000000000156A000-memory.dmp

Filesize
2.3MB

Download