bitrat | e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557 | Triage

Analysis

max time kernel
148s
max time network
142s
platform
windows7_x64
resource
win7-en-20211208
submitted
21-01-2022 22:58

Sharing

Report Analysis Logs

General

Target

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
Size

2.3MB
MD5

859bec0ee34fff27358f0b198443f3fd
SHA1

012f0e4382a529f33cbf0443fc1f51b21a6dce46
SHA256

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557
SHA512

983727e9cf90edb11412830e75c2f9254311246c97be0d3ca45480f5eb42d08b867e1c7471b08ee8fc45d691dc3e07bb6d5e73142425ebe5a1ce1e8cf7388f02

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

jairoandresotalvarorend.linkpc.net:9082

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
sophosavsdefender
install_file
sophosavsdefender.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/776-60-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/776-61-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/776-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/776-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/776-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\sophosavsdefender = "C:\\Users\\Admin\\AppData\\Local\\sophosavsdefender\\sophosavsdefender.exe"	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

pid	process
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

description	pid	process	target process
PID 1748 set thread context of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious behavior: RenamesItself 16 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

pid	process
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

description	pid	process
Token: SeDebugPrivilege	776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
Token: SeShutdownPrivilege	776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

pid	process
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
776	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

description	pid	process	target process
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
PID 1748 wrote to memory of 776	1748	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe	e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe

C:\Users\Admin\AppData\Local\Temp\e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
"C:\Users\Admin\AppData\Local\Temp\e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1748

C:\Users\Admin\AppData\Local\Temp\e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe
"C:\Users\Admin\AppData\Local\Temp\e475e6b73bab5bd3ae7e43fe83254204b0a0240ee61a408d8f2daf6647d95557.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:776

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/776-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-59-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-60-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/776-66-0x0000000000401000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1748-54-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1748-55-0x00000000074C0000-0x00000000074C1000-memory.dmp

Filesize
4KB

Download
memory/1748-56-0x0000000000270000-0x0000000000288000-memory.dmp

Filesize
96KB

Download
memory/1748-57-0x0000000008260000-0x000000000846A000-memory.dmp

Filesize
2.0MB

Download
memory/1748-58-0x0000000007BC0000-0x0000000007D52000-memory.dmp

Filesize
1.6MB

Download
memory/1748-53-0x0000000000820000-0x0000000000A6E000-memory.dmp

Filesize
2.3MB

Download