bandook | 6c54e110dd29f082ce13dcd1e2a4ac2a700cc8b7c1bb51afe84ebad355e3689a

General

Target

factura 009824.exe
Size

1.6MB
MD5

752e301ae1f726fd98279c779a31ef2e
SHA1

b2dca2b0913cbdc98d652917adcd157c778957c0
SHA256

bd318d45e08bceab9470b1cfec2e8a9e70c790daff0770a6bb60682653ac9480
SHA512

aaac35a116456d1a06c4e491265fab870ea41b28cdb35d93ba94276b75e1a418754fc9b3f35917ead90ef3959a7c3fab032a69298a8d0c0da6c2d949ad5d9fdd
SSDEEP

49152:ploCs/JrR6MYq4jRUiXXFpBdftBYxnbmFVpQhaYG:plOR96MR4VjLQnbUVpiG

Score

10^/10

bandook evasion persistence rat trojan

Malware Config

Extracted

Family

bandook

C2

bandar123.ddns.net

Signatures

Bandook RAT
Bandook is a remote access tool written in C++ and shipped with a loader written in Delphi.
rat trojan bandook

Bandook payload 5 IoCs

resource	yara_rule
behavioral1/memory/864-61-0x0000000013140000-0x0000000013B92000-memory.dmp	family_bandook
behavioral1/memory/864-62-0x000000001314962C-mapping.dmp	family_bandook
behavioral1/memory/864-66-0x0000000013140000-0x0000000013B92000-memory.dmp	family_bandook
behavioral1/memory/864-68-0x0000000013140000-0x0000000013B92000-memory.dmp	family_bandook
behavioral1/memory/864-69-0x0000000013140000-0x0000000013B92000-memory.dmp	family_bandook

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	factura 009824.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Wine	factura 009824.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\uis = "C:\\Users\\Admin\\AppData\\Local\\UIS\\uis.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\uis = "C:\\Users\\Admin\\AppData\\Local\\UIS\\uis.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1720 set thread context of 864	1720	factura 009824.exe	27

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1720	factura 009824.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 1720 wrote to memory of 864	1720	factura 009824.exe	27
PID 864 wrote to memory of 1768	864	factura 009824.exe	28
PID 864 wrote to memory of 1768	864	factura 009824.exe	28
PID 864 wrote to memory of 1768	864	factura 009824.exe	28
PID 864 wrote to memory of 1768	864	factura 009824.exe	28
PID 864 wrote to memory of 1768	864	factura 009824.exe	28
PID 864 wrote to memory of 956	864	factura 009824.exe	29
PID 864 wrote to memory of 956	864	factura 009824.exe	29
PID 864 wrote to memory of 956	864	factura 009824.exe	29
PID 864 wrote to memory of 956	864	factura 009824.exe	29
PID 864 wrote to memory of 956	864	factura 009824.exe	29
PID 864 wrote to memory of 1848	864	factura 009824.exe	30
PID 864 wrote to memory of 1848	864	factura 009824.exe	30
PID 864 wrote to memory of 1848	864	factura 009824.exe	30
PID 864 wrote to memory of 1848	864	factura 009824.exe	30
PID 864 wrote to memory of 1848	864	factura 009824.exe	30
PID 864 wrote to memory of 644	864	factura 009824.exe	31
PID 864 wrote to memory of 644	864	factura 009824.exe	31
PID 864 wrote to memory of 644	864	factura 009824.exe	31
PID 864 wrote to memory of 644	864	factura 009824.exe	31
PID 864 wrote to memory of 644	864	factura 009824.exe	31

C:\Users\Admin\AppData\Local\Temp\factura 009824.exe
"C:\Users\Admin\AppData\Local\Temp\factura 009824.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\factura 009824.exe
  "C:\Users\Admin\AppData\Local\Temp\factura 009824.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:1768
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    PID:956
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:1848
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    PID:644

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\UIS\uis.exe

Filesize
1.6MB

MD5
752e301ae1f726fd98279c779a31ef2e

SHA1
b2dca2b0913cbdc98d652917adcd157c778957c0

SHA256
bd318d45e08bceab9470b1cfec2e8a9e70c790daff0770a6bb60682653ac9480

SHA512
aaac35a116456d1a06c4e491265fab870ea41b28cdb35d93ba94276b75e1a418754fc9b3f35917ead90ef3959a7c3fab032a69298a8d0c0da6c2d949ad5d9fdd

Download Submit
memory/864-66-0x0000000013140000-0x0000000013B92000-memory.dmp

Filesize
10.3MB

Download
memory/864-59-0x0000000013140000-0x0000000013B92000-memory.dmp

Filesize
10.3MB

Download
memory/864-61-0x0000000013140000-0x0000000013B92000-memory.dmp

Filesize
10.3MB

Download
memory/864-67-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/864-68-0x0000000013140000-0x0000000013B92000-memory.dmp

Filesize
10.3MB

Download
memory/864-69-0x0000000013140000-0x0000000013B92000-memory.dmp

Filesize
10.3MB

Download
memory/1720-56-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/1720-57-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/1720-58-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/1720-65-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/1720-54-0x0000000000400000-0x00000000006BA000-memory.dmp

Filesize
2.7MB

Download
memory/1720-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads