bitrat | d3ddf40b5133634e7b56f9532035264723ac3006442f82f1af013c88f581ad22

General

Target

oka.exe
Size

1.7MB
MD5

09cf009d15f845497667171a11a51fd3
SHA1

c45fdc8dacdf6901e81185ff684d3deda57af6e7
SHA256

d3ddf40b5133634e7b56f9532035264723ac3006442f82f1af013c88f581ad22
SHA512

75424b3572e63f8eb19b6c8cbc5c987354f7db8bb4d32e8f3a5c74fee8144b8ec717bc4422ac090b2763b5e10917927c7a8c136e23832a7362646b33a9c903c0

Score

10^/10

bitrat trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

yakbitpeople.duckdns.org:9175

Attributes

communication_password
827ccb0eea8a706c4c34a16891f84e7b
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:

svchost.exe

pid process

1204 svchost.exe

pid	process
1204	svchost.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1140-59-0x0000000000410000-0x00000000007F4000-memory.dmp	upx
behavioral1/memory/1140-62-0x0000000000410000-0x00000000007F4000-memory.dmp	upx
behavioral1/memory/1140-64-0x0000000000410000-0x00000000007F4000-memory.dmp	upx
behavioral1/memory/1140-67-0x0000000000410000-0x00000000007F4000-memory.dmp	upx
behavioral1/memory/1140-72-0x0000000000410000-0x00000000007F4000-memory.dmp	upx
behavioral1/memory/1140-75-0x0000000000410000-0x00000000007F4000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

RegAsm.exe

pid process

1140 RegAsm.exe
1140 RegAsm.exe
1140 RegAsm.exe
1140 RegAsm.exe
1140 RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

oka.exe

description pid process target process

PID 1948 set thread context of 1140 1948 oka.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

672 schtasks.exe

pid	process
1140	RegAsm.exe
1140	RegAsm.exe
1140	RegAsm.exe
1140	RegAsm.exe
1140	RegAsm.exe

description	pid	process	target process
PID 1948 set thread context of 1140	1948	oka.exe	RegAsm.exe

pid	process
672	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

oka.exeRegAsm.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	1948	oka.exe
Token: SeDebugPrivilege	1140	RegAsm.exe
Token: SeShutdownPrivilege	1140	RegAsm.exe
Token: SeDebugPrivilege	1204	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

1140 RegAsm.exe
1140 RegAsm.exe

pid	process
1140	RegAsm.exe
1140	RegAsm.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

oka.execmd.exetaskeng.exe

description	pid	process	target process
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1140	1948	oka.exe	RegAsm.exe
PID 1948 wrote to memory of 1060	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 1060	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 1060	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 1060	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 764	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 764	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 764	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 764	1948	oka.exe	cmd.exe
PID 764 wrote to memory of 672	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 672	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 672	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 672	764	cmd.exe	schtasks.exe
PID 1948 wrote to memory of 796	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 796	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 796	1948	oka.exe	cmd.exe
PID 1948 wrote to memory of 796	1948	oka.exe	cmd.exe
PID 1516 wrote to memory of 1204	1516	taskeng.exe	svchost.exe
PID 1516 wrote to memory of 1204	1516	taskeng.exe	svchost.exe
PID 1516 wrote to memory of 1204	1516	taskeng.exe	svchost.exe
PID 1516 wrote to memory of 1204	1516	taskeng.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\oka.exe
"C:\Users\Admin\AppData\Local\Temp\oka.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948
- 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:1140
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
  2⤵
  PID:1060
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:764
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:672
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\oka.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
  2⤵
  PID:796

C:\Windows\system32\taskeng.exe
taskeng.exe {5AC6CC32-88CA-4CFD-97BD-5B0BFDEC7747} S-1-5-21-4084403625-2215941253-1760665084-1000:LDLTPJLN\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1204

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

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Downloads

C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

Filesize
1.7MB

MD5
09cf009d15f845497667171a11a51fd3

SHA1
c45fdc8dacdf6901e81185ff684d3deda57af6e7

SHA256
d3ddf40b5133634e7b56f9532035264723ac3006442f82f1af013c88f581ad22

SHA512
75424b3572e63f8eb19b6c8cbc5c987354f7db8bb4d32e8f3a5c74fee8144b8ec717bc4422ac090b2763b5e10917927c7a8c136e23832a7362646b33a9c903c0

Download Submit
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

Filesize
1.7MB

MD5
09cf009d15f845497667171a11a51fd3

SHA1
c45fdc8dacdf6901e81185ff684d3deda57af6e7

SHA256
d3ddf40b5133634e7b56f9532035264723ac3006442f82f1af013c88f581ad22

SHA512
75424b3572e63f8eb19b6c8cbc5c987354f7db8bb4d32e8f3a5c74fee8144b8ec717bc4422ac090b2763b5e10917927c7a8c136e23832a7362646b33a9c903c0

Download Submit
memory/672-70-0x0000000000000000-mapping.dmp

Download
memory/764-69-0x0000000000000000-mapping.dmp

Download
memory/796-71-0x0000000000000000-mapping.dmp

Download
memory/1060-63-0x0000000000000000-mapping.dmp

Download
memory/1140-74-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/1140-72-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-67-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-57-0x0000000000682000-0x00000000007F3000-memory.dmp

Filesize
1.4MB

Download
memory/1140-64-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-59-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-61-0x00000000007E2730-mapping.dmp

Download
memory/1140-73-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/1140-62-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-75-0x0000000000410000-0x00000000007F4000-memory.dmp

Filesize
3.9MB

Download
memory/1140-76-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/1140-77-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/1204-81-0x0000000001280000-0x0000000001436000-memory.dmp

Filesize
1.7MB

Download
memory/1204-79-0x0000000000000000-mapping.dmp

Download
memory/1948-54-0x0000000000B90000-0x0000000000D46000-memory.dmp

Filesize
1.7MB

Download
memory/1948-55-0x0000000075301000-0x0000000075303000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads