blackmoon | fcf54eaf0f05dae2521ce9a53b67a0ac8a72c98f9f8b25a9258fbe1261f0be5e

max time kernel
32s
max time network
35s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
22/12/2024, 04:38

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General

Target
tfd.zip
Size 6.6MB
Sample241222-e9fzbstnbs
SHA256 fcf54eaf0f05dae2521ce9a53b67a0ac8a72c98f9f8b25a9258fbe1261f0be5e
MD5 44da30588e79926aa259c03796820e6d
SHA1 37bc83fe0487e8c1f7f309983af78a3b3dab24f2
SHA512 1ff5a5e9f840fdf7713375c9294149f5265d1b09645eb00c2cc2d1ed07847a7bc990cc3aca8aaaf4205f9415153f9563be630268d28335a85bd1808cba3d8e0d
SSDEEP 98304:Nkm/OuBU0P2VJEgdGuTzUlD4JWX++gLCrK6UjqHiL7y3qF+Ok+K6QppKOU:KmWXXEgEuTzcOpuGDqCK3q0Xkt
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

blackmoon banker discovery trojan

Malware Config

Signatures

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

Detect Blackmoon payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0028000000046145-5.dat	family_blackmoon

Blocklisted process makes network request 3 IoCs

flow	pid	Process
26	4920	rundll32.exe
28	4920	rundll32.exe
30	4920	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4920	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4920	rundll32.exe
4920	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4920	rundll32.exe
4920	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1548	7zFM.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	1548	7zFM.exe
Token: 35	1548	7zFM.exe
Token: SeSecurityPrivilege	1548	7zFM.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1548	7zFM.exe
1548	7zFM.exe
1548	7zFM.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 2432	2664	cmd.exe	95
PID 2664 wrote to memory of 2432	2664	cmd.exe	95
PID 2432 wrote to memory of 4920	2432	rundll32.exe	96
PID 2432 wrote to memory of 4920	2432	rundll32.exe	96
PID 2432 wrote to memory of 4920	2432	rundll32.exe	96

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\tfd.zip"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1548

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:5008

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\tfbd\run me as admin.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\Desktop\tfbd\GF.DATA,Win10
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\Desktop\tfbd\GF.DATA,Win10
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

GF.DATA

Path C:\Users\Admin\Desktop\tfbd\GF.DATA
Size 6.9MB
SHA256 4848cd7fd555e5551d94a1b8df19d19a9cf65727c0d8badbe2457516ee19ead7
MD5 c6e29164ff238c1f3a538722c7ab9871
SHA1 8e3c981e9dcd9d71c2128811652b4a62acd2622b
SHA512 f9e736d37d83ad38255e22ec282ca6d137471a640981f5bcd039d04ddd3151e4036920d3d182230d1f442f8410ebdc4dc8ef95f7264450a517c4fa9ad3308a31
SSDEEP 196608:2r05756bdjFOVhF22yMRTvBmmzIzCMRo:2FdjUVhacB1sJRo
MD5 SHA1 SHA512 SSDEEP

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run me as admin.bat

Path C:\Users\Admin\Desktop\tfbd\run me as admin.bat
Size 111B
SHA256 49941008e16ca6b79cc4949da034da2696d7f78d6664b74afcd11902eb76c3c9
MD5 32ebd1b51e027f5eb86c7cd3bf98f661
SHA1 9f94f463b0c60e73cb6d9a221feb86da05bf5582
SHA512 4540c9d9ea0e58e889d29d50cb22bb4e0d5c401475127c529d9abacf9ea0c3a9aa8b22ca1b13fd6da98f0452b8e7d22111b59bc520b57601e3d6e606c0d48b35
MD5 SHA1 SHA512

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memory/4920-7-0x0000000002E60000-0x0000000002E61000-memory.dmp

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memory/4920-8-0x0000000002E70000-0x0000000002E71000-memory.dmp

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