blackmoon | 171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5

Analysis

max time kernel
97s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2024, 05:23

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General

Target

171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe
Size

3.8MB
MD5

d0591eb5d21b597c73da19e3894571c0
SHA1

3bd9c30e8f12cb797ca3e5246bb811f63bd8df60
SHA256

171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5
SHA512

6eaf26cc213439d14450ffce46a37fee0ef0b21cdf7902bae5be8c903d10cbf685e8e3f19d992951abca90b0373efdae4967c666030b262251048fd9c81856e1
SSDEEP

49152:3sCOfN6X5tLLQTg20ITS/PPs/1kS4eKRL/SRsj0Zuur1T75YqVUrmNF98ij:Q6XLq/qPPslzKx/dJg1ErmNd

Score

10^/10

blackmoon njrat banker discovery trojan upx

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 4 IoCs

resource	yara_rule
behavioral2/memory/4052-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral2/memory/404-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral2/files/0x000d000000023b3f-3.dat	family_blackmoon
behavioral2/memory/4052-6-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
404	tnnnbb.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4052-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/404-4-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/files/0x000d000000023b3f-3.dat	upx
behavioral2/memory/4052-6-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4488	404	WerFault.exe	83

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	171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tnnnbb.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 404	4052	171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe	83
PID 4052 wrote to memory of 404	4052	171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe	83
PID 4052 wrote to memory of 404	4052	171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe	83

C:\Users\Admin\AppData\Local\Temp\171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe
"C:\Users\Admin\AppData\Local\Temp\171f86d7a6ecd09bef74f29d53d9d06a778248849c8517b370d9d42b9b9987f5N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- \??\c:\tnnnbb.exe
  c:\tnnnbb.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 224
    3⤵
    - Program crash
    PID:4488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 404 -ip 404
1⤵
PID:3688

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

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Downloads

C:\tnnnbb.exe

Filesize
3.8MB

MD5
41d4a62b5e1f503669883dc298b278db

SHA1
232a9523fd7afcb72eef0e0528aa46e22e596ae3

SHA256
2ff07f962a816f0997c296f8ecf172212f34174d206f86e676ea0e183a95e937

SHA512
a5aeddc805e91769d7e3be0e08cd4a347b044089b2b685380dc4fc27a95d0744e73fceb8b932df0de483fb29757af737953e1d37936dd6b4bb319896ca4ef2a3

Download Submit
memory/404-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4052-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4052-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download