bandook | f9d9d00a974b259b747217d021d95c7902c8a8807539db0bbf43939be972e281

Analysis

max time kernel
148s
max time network
168s
platform
windows7_x64
resource
win7v20210410
submitted
16-07-2021 17:35

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General

Target

2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe

Score

10^/10

bandook persistence rat trojan upx

Malware Config

Signatures

Bandook Payload 1 IoCs

resource	yara_rule
behavioral3/memory/524-69-0x0000000013C8F890-mapping.dmp	family_bandook

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral3/memory/2032-62-0x0000000013140000-0x0000000013CEB000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\gtgthkvkrxpnvuazerse = "C:\\Users\\Admin\\AppData\\Roaming\\gtgthkvkrxpnvuazerse\\gtgthkvkrxpnvuazerse.exe"	iexplore.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 set thread context of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 set thread context of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 set thread context of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2032	iexplore.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 2032	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	29
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 1248	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	30
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 524	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	31
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32
PID 916 wrote to memory of 848	916	2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe	32

C:\Users\Admin\AppData\Local\Temp\2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe
"C:\Users\Admin\AppData\Local\Temp\2fc92db641004976273712cdacab3f1416b6f7fcb8a6019bbb6ca539e9effefc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:916
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2032
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - Adds Run key to start application
  PID:1248
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  PID:524
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  PID:848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/916-60-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/916-61-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2032-62-0x0000000013140000-0x0000000013CEB000-memory.dmp

Filesize
11.7MB

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