blackmoon | 4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 07:20

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General

Target

4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe
Size

1.9MB
MD5

7d300de0e749fbfb62913b29b19e31a3
SHA1

2d1dbf9ff8cff335485908ea561b0200f008f109
SHA256

4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509
SHA512

469a7431de5d4818747d8f2b7843c29731290ede2655ae8add77b2dc7c79599466b2db81f3d4bf2602995eef64b10d687ef8b322ccb36d8b9877c8cb782357f9
SSDEEP

24576:uiutLZi5jXHG/a1VdP+TLkjtU22hNBPIYF3TseQMOx4/YNsxPwkbiVMI/JbTaijB:iLym/cVdsQjtU22hNfGWgf03bwF

Score

10^/10

blackmoon banker discovery trojan upx

Malware Config

Signatures

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
behavioral2/files/0x000d000000023c1f-4.dat	family_blackmoon

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe

Executes dropped EXE 1 IoCs

pid	Process
3432	windowsPUG.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3432-8-0x00000000008F0000-0x00000000008FB000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowsPUG.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1860	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe
1860	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 3432	1860	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe	85
PID 1860 wrote to memory of 3432	1860	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe	85
PID 1860 wrote to memory of 3432	1860	4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe	85

C:\Users\Admin\AppData\Local\Temp\4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe
"C:\Users\Admin\AppData\Local\Temp\4f5cdff2bfacee8aca7f3aaaad1b481eab958a365cf276e8e5d78df56ab0b509.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Users\Admin\AppData\Local\Temp\windowsPUG.exe
  "C:\Users\Admin\AppData\Local\Temp\windowsPUG.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\windowsPUG.exe

Filesize
1.0MB

MD5
b493f2b16e6cf806d749d1a7469d2cb8

SHA1
a5ecc29a587abe90e772abf7157b6f7542352f8a

SHA256
68ea178b58189bd526a07468bd8ca2d99a58f2dbea4182dd45ee8ab938ddca08

SHA512
76b1b2d6ec990c95d67a283830baaa8118b8eb8523417fb5cde993e193be21476f170dcc2e8685b507e603a72b695e53fdfd00d36c9611746be42907a27245d3

Download Submit
memory/3432-8-0x00000000008F0000-0x00000000008FB000-memory.dmp

Filesize
44KB

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