bandook | 512dc2e5252c2063a348f3475789b0cd02fce90c68f17845e3b99dd2fd8049e4

General

Target

Visualizarpdf-print-29052023.exe
Size

5.2MB
MD5

79441b006a2145fa62d02622400ac2e6
SHA1

89d8c2e884766d0e1d4e460903f7dae0075bbaf5
SHA256

512dc2e5252c2063a348f3475789b0cd02fce90c68f17845e3b99dd2fd8049e4
SHA512

c1432f553466d11d3ade7397f09fca62288e02538ee00ad5c86c432d84f4e0b826d3f82bd3b251de362039e2ba40f65b5fb8e181d71e566360b92147966831ec
SSDEEP

49152:ybVKnrKEdSQZaH5GcLo3Fj/Z92N9QjCuX+kVoNkvMdm66w5HO6vrVlZruEk:y8B

Score

10^/10

bandook persistence rat trojan upx

Malware Config

Extracted

Family

bandook

C2

humut.su

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 8 IoCs

resource	yara_rule
behavioral2/memory/3696-157-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-158-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-159-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-160-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-162-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-164-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/3696-168-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook
behavioral2/memory/4304-209-0x0000000013140000-0x000000001425D000-memory.dmp	family_bandook

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3696-154-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-155-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-157-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-158-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-159-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-160-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-162-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-164-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/3696-168-0x0000000013140000-0x000000001425D000-memory.dmp	upx
behavioral2/memory/4304-209-0x0000000013140000-0x000000001425D000-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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows\CurrentVersion\Run	msinfo32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TLJ = "C:\\Users\\Admin\\AppData\\Roaming\\TLJ\\TLJ.exe"	msinfo32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4764 set thread context of 4304	4764	Visualizarpdf-print-29052023.exe	99

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3696	msinfo32.exe
3696	msinfo32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 3696	4000	Visualizarpdf-print-29052023.exe	94
PID 4000 wrote to memory of 3696	4000	Visualizarpdf-print-29052023.exe	94
PID 4000 wrote to memory of 3696	4000	Visualizarpdf-print-29052023.exe	94
PID 4000 wrote to memory of 4764	4000	Visualizarpdf-print-29052023.exe	95
PID 4000 wrote to memory of 4764	4000	Visualizarpdf-print-29052023.exe	95
PID 4000 wrote to memory of 4764	4000	Visualizarpdf-print-29052023.exe	95
PID 4000 wrote to memory of 3696	4000	Visualizarpdf-print-29052023.exe	94
PID 4000 wrote to memory of 3696	4000	Visualizarpdf-print-29052023.exe	94
PID 4764 wrote to memory of 4304	4764	Visualizarpdf-print-29052023.exe	99
PID 4764 wrote to memory of 4304	4764	Visualizarpdf-print-29052023.exe	99
PID 4764 wrote to memory of 4304	4764	Visualizarpdf-print-29052023.exe	99
PID 4764 wrote to memory of 4304	4764	Visualizarpdf-print-29052023.exe	99
PID 4764 wrote to memory of 4304	4764	Visualizarpdf-print-29052023.exe	99

C:\Users\Admin\AppData\Local\Temp\Visualizarpdf-print-29052023.exe
"C:\Users\Admin\AppData\Local\Temp\Visualizarpdf-print-29052023.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4000
- C:\windows\SysWOW64\msinfo32.exe
  C:\windows\syswow64\msinfo32.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3696
- C:\Users\Admin\AppData\Local\Temp\Visualizarpdf-print-29052023.exe
  C:\Users\Admin\AppData\Local\Temp\Visualizarpdf-print-29052023.exe ooooooooooooooo
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\windows\SysWOW64\msinfo32.exe
    C:\windows\syswow64\msinfo32.exe
    3⤵
    - Adds Run key to start application
    PID:4304

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

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3696-154-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-168-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-164-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-162-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-160-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-159-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-158-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-157-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/3696-155-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/4000-151-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-134-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-156-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-152-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-133-0x0000000002920000-0x0000000002921000-memory.dmp

Filesize
4KB

Download
memory/4000-150-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-137-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-136-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-135-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4000-180-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4304-209-0x0000000013140000-0x000000001425D000-memory.dmp

Filesize
17.1MB

Download
memory/4764-165-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4764-171-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4764-173-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4764-167-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/4764-199-0x0000000000400000-0x0000000000936000-memory.dmp

Filesize
5.2MB

Download
memory/4764-153-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download

Analysis

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