bitrat | 1e7241871b2af1f8488a0812f273b73f86d2c9f2ce7b0e6bf3b1fc6a46bd27d3 | Triage

Analysis

max time kernel
147s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-12-2023 20:08

Sharing

Report Analysis Logs

General

Target

8e3bce07666fd0f9f811c457ed7af20b.exe
Size

2.2MB
MD5

8e3bce07666fd0f9f811c457ed7af20b
SHA1

ec76d846f02926cfe67166554e9c060222527c08
SHA256

1e7241871b2af1f8488a0812f273b73f86d2c9f2ce7b0e6bf3b1fc6a46bd27d3
SHA512

52da7228497d6974a8597d8fed5e0a0b1a87b0b487891d4147bcff1b8cab0ff383e017f7a0c80c6b1c1df3db18397f620623118346c1e871dd513202ef4e365e
SSDEEP

49152:fd4cfizng5F5A48pMXEztH1TX3LlrmovkoaSv4bQkEL5Qqkz:Ff8g75A4We6/TXbQovrWbQkELixz

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

jairoandresotalvarorend.linkpc.net:9070

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
windownslogoiniciodir
install_file
windownslogoinicio.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 19 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/2328-11-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-12-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-15-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-16-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-17-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-18-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-19-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-21-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-22-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-24-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-25-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-26-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-28-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-29-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-30-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-31-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-32-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-33-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2328-34-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\windownslogoinicio = "C:\\Users\\Admin\\AppData\\Local\\windownslogoiniciodir\\windownslogoinicio.exe"	8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

pid	process
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

description pid process target process

PID 1968 set thread context of 2328 1968 8e3bce07666fd0f9f811c457ed7af20b.exe 8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious behavior: RenamesItself 22 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

pid	process
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe
2328	8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

description	pid	process
Token: SeDebugPrivilege	2328	8e3bce07666fd0f9f811c457ed7af20b.exe
Token: SeShutdownPrivilege	2328	8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

pid process

2328 8e3bce07666fd0f9f811c457ed7af20b.exe
2328 8e3bce07666fd0f9f811c457ed7af20b.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8e3bce07666fd0f9f811c457ed7af20b.exe

description	pid	process	target process
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe
PID 1968 wrote to memory of 2328	1968	8e3bce07666fd0f9f811c457ed7af20b.exe	8e3bce07666fd0f9f811c457ed7af20b.exe

C:\Users\Admin\AppData\Local\Temp\8e3bce07666fd0f9f811c457ed7af20b.exe
"C:\Users\Admin\AppData\Local\Temp\8e3bce07666fd0f9f811c457ed7af20b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1968

C:\Users\Admin\AppData\Local\Temp\8e3bce07666fd0f9f811c457ed7af20b.exe
"C:\Users\Admin\AppData\Local\Temp\8e3bce07666fd0f9f811c457ed7af20b.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1968-1-0x00000000749D0000-0x00000000750BE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-0-0x0000000000B10000-0x0000000000D48000-memory.dmp

Filesize
2.2MB

Download
memory/1968-2-0x0000000004E90000-0x0000000004ED0000-memory.dmp

Filesize
256KB

Download
memory/1968-3-0x00000000003F0000-0x000000000040A000-memory.dmp

Filesize
104KB

Download
memory/1968-4-0x00000000749D0000-0x00000000750BE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-5-0x0000000004E90000-0x0000000004ED0000-memory.dmp

Filesize
256KB

Download
memory/1968-6-0x00000000084E0000-0x0000000008698000-memory.dmp

Filesize
1.7MB

Download
memory/1968-7-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1968-8-0x00000000086A0000-0x0000000008826000-memory.dmp

Filesize
1.5MB

Download
memory/1968-20-0x00000000749D0000-0x00000000750BE000-memory.dmp

Filesize
6.9MB

Download
memory/2328-16-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-24-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2328-15-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-11-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-17-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-18-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-9-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-19-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-21-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-22-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-12-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-25-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-26-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-28-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-29-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-30-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-31-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-32-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-33-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2328-34-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download