blackmoon | a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fc

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2024 23:45

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General

Target

a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe
Size

3.8MB
MD5

606b97ece0952eaa2da4cffa96e1fab0
SHA1

12054550a8c1fc0bd9458d82abc2a0d93286fd5e
SHA256

a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fc
SHA512

13c271574f6c647eb9065b2ab20290aa60fb76f61b0c12162ffecf9eb784e6c65d48d6d2a573c8de981b27dd692ee8ce5c8e5d072b6c8d76501bad7f3ca43b01
SSDEEP

49152:IsCOfN6X5tLLQTg20ITS/PPs/1kS4eKRL/SRsj0Zuur1T75YqVUrmNF98F:76XLq/qPPslzKx/dJg1ErmNC

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

Processes:

resource	yara_rule
behavioral2/memory/1548-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral2/memory/1548-6-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
\??\c:\rfllrlf.exe	family_blackmoon
behavioral2/memory/4740-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

rfllrlf.exe

pid process

4740 rfllrlf.exe

pid	process
4740	rfllrlf.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1548-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1548-6-0x0000000000400000-0x0000000000428000-memory.dmp	upx
\??\c:\rfllrlf.exe	upx
behavioral2/memory/4740-4-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

628 4740 WerFault.exe rfllrlf.exe

pid	pid_target	process	target process
628	4740	WerFault.exe	rfllrlf.exe

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

Processes:

a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exerfllrlf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rfllrlf.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe

description	pid	process	target process
PID 1548 wrote to memory of 4740	1548	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	rfllrlf.exe
PID 1548 wrote to memory of 4740	1548	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	rfllrlf.exe
PID 1548 wrote to memory of 4740	1548	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	rfllrlf.exe

C:\Users\Admin\AppData\Local\Temp\a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe
"C:\Users\Admin\AppData\Local\Temp\a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1548
- \??\c:\rfllrlf.exe
  c:\rfllrlf.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 224
    3⤵
    - Program crash
    PID:628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4740 -ip 4740
1⤵
PID:3968

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

\??\c:\rfllrlf.exe

Filesize
3.8MB

MD5
d2fb708f76800fafeab8e4f50e3f5ffa

SHA1
1b966e5937eb9c98b6308baf7cbe77c1c9a88357

SHA256
cb1cc8855f0c172433b1c9a2f0fb8c0fd0e240552f56b6b544816897b3662031

SHA512
7b6f118d246e28b7747a6c43359bb8efcb9cff22a7bf510e1ba0d3faaecf8628c3b684eb67bc631e23810c648817146b63ef0401d636bb17122e505828054f7a

Download Submit
memory/1548-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1548-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4740-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download