blackmoon | 9310dd497d7feee8ad590da0086f7db8bf43b66e3a8cac6dc1e9228bf7137c75

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
02/09/2023, 20:33

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General

Target

9310dd497d7feee8ad590da0086f7db8bf43b66e3a8cac6dc1e9228bf7137c75.dll
Size

66KB
MD5

d73f8cd93189c46c1d4058ce9af4b752
SHA1

5eff68604a537dae5afc193710402ed0219d12ea
SHA256

9310dd497d7feee8ad590da0086f7db8bf43b66e3a8cac6dc1e9228bf7137c75
SHA512

43148e7c31859a6133c91fccf7eef3ebafee16e09fad298b3bb9a33597ac43f067a651af090d42e0329d50d5a88c45ce259c7e923d6229c72d2b4d5c10942fac
SSDEEP

1536:wNjPUnRAumvCoCzPTYcV0rPXP4HsrIIOWXxoV:wNjENbMcVAPXPsVpWho

Score

10^/10

blackmoon banker persistence trojan

Malware Config

Signatures

Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
trojan banker blackmoon

Detect Blackmoon payload 2 IoCs

resource	yara_rule
behavioral1/memory/1420-2-0x0000000010000000-0x0000000010067000-memory.dmp	family_blackmoon
behavioral1/memory/1420-23-0x0000000010000000-0x0000000010067000-memory.dmp	family_blackmoon

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows\CurrentVersion\Run\qdatem = "C:\\Users\\Public\\Documents\\Applicationqgzij.exe"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32.txt	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2236	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1944 wrote to memory of 1420	1944	rundll32.exe	28
PID 1420 wrote to memory of 2236	1420	rundll32.exe	29
PID 1420 wrote to memory of 2236	1420	rundll32.exe	29
PID 1420 wrote to memory of 2236	1420	rundll32.exe	29
PID 1420 wrote to memory of 2236	1420	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9310dd497d7feee8ad590da0086f7db8bf43b66e3a8cac6dc1e9228bf7137c75.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9310dd497d7feee8ad590da0086f7db8bf43b66e3a8cac6dc1e9228bf7137c75.dll,#1
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\rundll32.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\rundll32.txt

Filesize
120KB

MD5
3aea5b78bac5359a799c2714fecccd1a

SHA1
5d3203b328ecfc7a55c0ded1032d209e9f273367

SHA256
c05e763cab67cf9daf5be7a6a6cff2650223987a9693eaa119f69b2bbb6df6c3

SHA512
9513cc84a7ed3dd709d4affb03f6e286dcd43e82f33441c00a9d74d2b45449f2ee20baa8db46218d7a59d9e62fb7f95050ea305166e70f3e71dde39ccf07b6d3

Download Submit
C:\Users\Public\Documents\sjsw.log

Filesize
162B

MD5
0a2dcf199afc7f50d4e16fc0bee1e7ee

SHA1
16fbc549b74036b20bef29916b26485174334530

SHA256
a6e6abc5a24194e576e5bda08a632178e45ba5b5f23e06cadf3cc5e4a57e709c

SHA512
b456049077a6f9df393c4f12b9557da0bb67e69b4297a1828d3309f21d5f419bb81b3bb33ea7b1c1f84cba0e446aad6ada64a6676b56df60683230a6a12f366f

Download Submit
memory/1420-0-0x0000000010000000-0x0000000010067000-memory.dmp

Filesize
412KB

Download
memory/1420-2-0x0000000010000000-0x0000000010067000-memory.dmp

Filesize
412KB

Download
memory/1420-3-0x00000000000C0000-0x00000000000C3000-memory.dmp

Filesize
12KB

Download
memory/1420-23-0x0000000010000000-0x0000000010067000-memory.dmp

Filesize
412KB

Download