bitrat | 9d5e19acb918040dcf79ccff74833262fb19f5460f51587d265210374f6f1884

General

Target

NAMUJS_ETRANSFER_RECEIPT.exe
Size

300.0MB
MD5

aa16895db009a8b646bb9c51f9b51c58
SHA1

014b372bc0620fb1173679abb7c189d0464ce208
SHA256

72656944adc7c9dabbc263d8a1c7f79ff6d0b6a3b06a11f88b741977c5e4f751
SHA512

4411e718c124059044ab7fbe54f3fefa76c9d5cd2263c4214c70a498d681f87f2804aef0e8c94b630fadf9470d5e804702349ab21fafa512a368d90424d8e29b
SSDEEP

24576:GzEo/IReVjVaXcqqza/KkJVWpcpr8lCGyi2FBGbZLipIjJ7Fb5DIoN3EtO:GziCYXKzyKkJM8r8lXyEGpIjJ73jtEt

Score

10^/10

bitrat trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bitrat9300.duckdns.org:9300

Attributes

communication_password
e10adc3949ba59abbe56e057f20f883e
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat
Executes dropped EXE 1 IoCs

Processes:

olkij.exe

pid process

1836 olkij.exe

pid	process
1836	olkij.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1436-61-0x0000000000480000-0x0000000000864000-memory.dmp	upx
behavioral1/memory/1436-65-0x0000000000480000-0x0000000000864000-memory.dmp	upx
behavioral1/memory/1436-64-0x0000000000480000-0x0000000000864000-memory.dmp	upx
behavioral1/memory/1436-68-0x0000000000480000-0x0000000000864000-memory.dmp	upx
behavioral1/memory/1436-70-0x0000000000480000-0x0000000000864000-memory.dmp	upx
behavioral1/memory/1436-71-0x0000000000480000-0x0000000000864000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegAsm.exe

pid process

1436 RegAsm.exe
1436 RegAsm.exe
1436 RegAsm.exe
1436 RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

NAMUJS_ETRANSFER_RECEIPT.exe

description pid process target process

PID 1760 set thread context of 1436 1760 NAMUJS_ETRANSFER_RECEIPT.exe RegAsm.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1540 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1436 RegAsm.exe
Token: SeShutdownPrivilege 1436 RegAsm.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

1436 RegAsm.exe
1436 RegAsm.exe

pid	process
1436	RegAsm.exe
1436	RegAsm.exe
1436	RegAsm.exe
1436	RegAsm.exe

description	pid	process	target process
PID 1760 set thread context of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe

pid	process
1540	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1436	RegAsm.exe
Token: SeShutdownPrivilege	1436	RegAsm.exe

pid	process
1436	RegAsm.exe
1436	RegAsm.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

NAMUJS_ETRANSFER_RECEIPT.execmd.exetaskeng.exe

description	pid	process	target process
PID 1760 wrote to memory of 980	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 980	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 980	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 980	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 1488	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 1488	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 1488	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1760 wrote to memory of 1488	1760	NAMUJS_ETRANSFER_RECEIPT.exe	cmd.exe
PID 980 wrote to memory of 1540	980	cmd.exe	schtasks.exe
PID 980 wrote to memory of 1540	980	cmd.exe	schtasks.exe
PID 980 wrote to memory of 1540	980	cmd.exe	schtasks.exe
PID 980 wrote to memory of 1540	980	cmd.exe	schtasks.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1760 wrote to memory of 1436	1760	NAMUJS_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 740 wrote to memory of 1836	740	taskeng.exe	olkij.exe
PID 740 wrote to memory of 1836	740	taskeng.exe	olkij.exe
PID 740 wrote to memory of 1836	740	taskeng.exe	olkij.exe
PID 740 wrote to memory of 1836	740	taskeng.exe	olkij.exe

C:\Users\Admin\AppData\Local\Temp\NAMUJS_ETRANSFER_RECEIPT.exe
"C:\Users\Admin\AppData\Local\Temp\NAMUJS_ETRANSFER_RECEIPT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\SysWOW64\cmd.exe
"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:980

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f
3⤵
- Creates scheduled task(s)
PID:1540

C:\Windows\SysWOW64\cmd.exe
"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\NAMUJS_ETRANSFER_RECEIPT.exe" "C:\Users\Admin\AppData\Local\Temp\olkij.exe"
2⤵
PID:1488

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1436

C:\Windows\system32\taskeng.exe
taskeng.exe {F413D0A9-B06B-4762-85BB-5A69CB86818C} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:740

C:\Users\Admin\AppData\Local\Temp\olkij.exe
C:\Users\Admin\AppData\Local\Temp\olkij.exe
2⤵
- Executes dropped EXE
PID:1836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\olkij.exe

Filesize
300.0MB

MD5
aa16895db009a8b646bb9c51f9b51c58

SHA1
014b372bc0620fb1173679abb7c189d0464ce208

SHA256
72656944adc7c9dabbc263d8a1c7f79ff6d0b6a3b06a11f88b741977c5e4f751

SHA512
4411e718c124059044ab7fbe54f3fefa76c9d5cd2263c4214c70a498d681f87f2804aef0e8c94b630fadf9470d5e804702349ab21fafa512a368d90424d8e29b

Download Submit
C:\Users\Admin\AppData\Local\Temp\olkij.exe

Filesize
300.0MB

MD5
aa16895db009a8b646bb9c51f9b51c58

SHA1
014b372bc0620fb1173679abb7c189d0464ce208

SHA256
72656944adc7c9dabbc263d8a1c7f79ff6d0b6a3b06a11f88b741977c5e4f751

SHA512
4411e718c124059044ab7fbe54f3fefa76c9d5cd2263c4214c70a498d681f87f2804aef0e8c94b630fadf9470d5e804702349ab21fafa512a368d90424d8e29b

Download Submit
memory/980-55-0x0000000000000000-mapping.dmp

Download
memory/1436-64-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1436-68-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1436-61-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1436-63-0x00000000007E2730-mapping.dmp

Download
memory/1436-65-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1436-71-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1436-66-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1436-59-0x00000000006F2000-0x0000000000863000-memory.dmp

Filesize
1.4MB

Download
memory/1436-70-0x0000000000480000-0x0000000000864000-memory.dmp

Filesize
3.9MB

Download
memory/1488-56-0x0000000000000000-mapping.dmp

Download
memory/1540-57-0x0000000000000000-mapping.dmp

Download
memory/1760-54-0x0000000000CF0000-0x0000000000E7A000-memory.dmp

Filesize
1.5MB

Download
memory/1836-73-0x0000000000000000-mapping.dmp

Download
memory/1836-75-0x0000000000160000-0x00000000002EA000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads