bitrat | 1b3da7f55427827f44cafce5301508fb6e2806c387e5044479778c8dde87624a

General

Target

wdfvbn.exe
Size

289.4MB
MD5

566135e9a517a204c2e8fb2f7332ecdc
SHA1

4cde0ea64922233cafe2eba489a79d67222e2022
SHA256

1b3da7f55427827f44cafce5301508fb6e2806c387e5044479778c8dde87624a
SHA512

9caf700b65d48617e6df09f2754a212c0c90908695b9be0aa33c2e7640e0529d20a91b51eab6dd3a775a51b63f281dfd358afe271b1781cf16165bc24cb1bdfe

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:

wdfvbn.exe

pid process

1952 wdfvbn.exe

pid	process
1952	wdfvbn.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1128-59-0x0000000000460000-0x0000000000844000-memory.dmp	upx
behavioral1/memory/1128-62-0x0000000000460000-0x0000000000844000-memory.dmp	upx
behavioral1/memory/1128-64-0x0000000000460000-0x0000000000844000-memory.dmp	upx
behavioral1/memory/1128-66-0x0000000000460000-0x0000000000844000-memory.dmp	upx
behavioral1/memory/1128-71-0x0000000000460000-0x0000000000844000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

vbc.exe

pid process

1128 vbc.exe
1128 vbc.exe
1128 vbc.exe
1128 vbc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wdfvbn.exe

description pid process target process

PID 736 set thread context of 1128 736 wdfvbn.exe vbc.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

472 schtasks.exe

pid	process
1128	vbc.exe
1128	vbc.exe
1128	vbc.exe
1128	vbc.exe

description	pid	process	target process
PID 736 set thread context of 1128	736	wdfvbn.exe	vbc.exe

pid	process
472	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

wdfvbn.exevbc.exewdfvbn.exe

description	pid	process
Token: SeDebugPrivilege	736	wdfvbn.exe
Token: SeDebugPrivilege	1128	vbc.exe
Token: SeShutdownPrivilege	1128	vbc.exe
Token: SeDebugPrivilege	1952	wdfvbn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

vbc.exe

pid process

1128 vbc.exe
1128 vbc.exe

pid	process
1128	vbc.exe
1128	vbc.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

wdfvbn.execmd.exetaskeng.exe

description	pid	process	target process
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1128	736	wdfvbn.exe	vbc.exe
PID 736 wrote to memory of 1452	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1452	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1452	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1452	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1740	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1740	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1740	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1740	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1716	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1716	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1716	736	wdfvbn.exe	cmd.exe
PID 736 wrote to memory of 1716	736	wdfvbn.exe	cmd.exe
PID 1740 wrote to memory of 472	1740	cmd.exe	schtasks.exe
PID 1740 wrote to memory of 472	1740	cmd.exe	schtasks.exe
PID 1740 wrote to memory of 472	1740	cmd.exe	schtasks.exe
PID 1740 wrote to memory of 472	1740	cmd.exe	schtasks.exe
PID 1068 wrote to memory of 1952	1068	taskeng.exe	wdfvbn.exe
PID 1068 wrote to memory of 1952	1068	taskeng.exe	wdfvbn.exe
PID 1068 wrote to memory of 1952	1068	taskeng.exe	wdfvbn.exe
PID 1068 wrote to memory of 1952	1068	taskeng.exe	wdfvbn.exe

C:\Users\Admin\AppData\Local\Temp\wdfvbn.exe
"C:\Users\Admin\AppData\Local\Temp\wdfvbn.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1128

C:\Windows\SysWOW64\cmd.exe
"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\wdfvbn"
2⤵
PID:1452

C:\Windows\SysWOW64\cmd.exe
"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe'" /f
3⤵
- Creates scheduled task(s)
PID:472

C:\Windows\SysWOW64\cmd.exe
"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\wdfvbn.exe" "C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe"
2⤵
PID:1716

C:\Windows\system32\taskeng.exe
taskeng.exe {504F31F9-67E6-4261-B49B-5D65C678DE32} S-1-5-21-3440072777-2118400376-1759599358-1000:NKWDSIWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1068

C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe
C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Scripting

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe
Filesize
289.4MB

MD5
566135e9a517a204c2e8fb2f7332ecdc

SHA1
4cde0ea64922233cafe2eba489a79d67222e2022

SHA256
1b3da7f55427827f44cafce5301508fb6e2806c387e5044479778c8dde87624a

SHA512
9caf700b65d48617e6df09f2754a212c0c90908695b9be0aa33c2e7640e0529d20a91b51eab6dd3a775a51b63f281dfd358afe271b1781cf16165bc24cb1bdfe

Download Submit
C:\Users\Admin\AppData\Roaming\wdfvbn\wdfvbn.exe
Filesize
289.4MB

MD5
566135e9a517a204c2e8fb2f7332ecdc

SHA1
4cde0ea64922233cafe2eba489a79d67222e2022

SHA256
1b3da7f55427827f44cafce5301508fb6e2806c387e5044479778c8dde87624a

SHA512
9caf700b65d48617e6df09f2754a212c0c90908695b9be0aa33c2e7640e0529d20a91b51eab6dd3a775a51b63f281dfd358afe271b1781cf16165bc24cb1bdfe

Download Submit
memory/472-70-0x0000000000000000-mapping.dmp

Download
memory/736-54-0x0000000000C90000-0x0000000000E52000-memory.dmp

Filesize
1.8MB

Download
memory/736-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1128-66-0x0000000000460000-0x0000000000844000-memory.dmp

Filesize
3.9MB

Download
memory/1128-64-0x0000000000460000-0x0000000000844000-memory.dmp

Filesize
3.9MB

Download
memory/1128-62-0x0000000000460000-0x0000000000844000-memory.dmp

Filesize
3.9MB

Download
memory/1128-61-0x00000000007E2730-mapping.dmp

Download
memory/1128-71-0x0000000000460000-0x0000000000844000-memory.dmp

Filesize
3.9MB

Download
memory/1128-59-0x0000000000460000-0x0000000000844000-memory.dmp

Filesize
3.9MB

Download
memory/1128-57-0x00000000006D2000-0x0000000000843000-memory.dmp

Filesize
1.4MB

Download
memory/1452-63-0x0000000000000000-mapping.dmp

Download
memory/1716-69-0x0000000000000000-mapping.dmp

Download
memory/1740-67-0x0000000000000000-mapping.dmp

Download
memory/1952-73-0x0000000000000000-mapping.dmp

Download
memory/1952-75-0x0000000000C90000-0x0000000000E52000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads