blackmoon | a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fc

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-10-2024 23:39

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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
behavioral1/memory/1868-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral1/memory/2068-8-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral1/files/0x0007000000012117-7.dat	family_blackmoon
behavioral1/memory/1868-6-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon

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

Executes dropped EXE 1 IoCs

Processes:

nbbbtt.exe

pid	Process
2068	nbbbtt.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1868-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/memory/2068-8-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/files/0x0007000000012117-7.dat	upx
behavioral1/memory/1868-6-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2828	2068	WerFault.exe	30

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.exenbbbtt.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nbbbtt.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exenbbbtt.exe

description	pid	Process	procid_target
PID 1868 wrote to memory of 2068	1868	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	30
PID 1868 wrote to memory of 2068	1868	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	30
PID 1868 wrote to memory of 2068	1868	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	30
PID 1868 wrote to memory of 2068	1868	a3779fc0e5cc0845faab56b3bd00bcc4dfbc289ba8f645d4d4fc4ae6834248fcN.exe	30
PID 2068 wrote to memory of 2828	2068	nbbbtt.exe	31
PID 2068 wrote to memory of 2828	2068	nbbbtt.exe	31
PID 2068 wrote to memory of 2828	2068	nbbbtt.exe	31
PID 2068 wrote to memory of 2828	2068	nbbbtt.exe	31

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:1868
- \??\c:\nbbbtt.exe
  c:\nbbbtt.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 36
    3⤵
    - Program crash
    PID:2828

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:\nbbbtt.exe

Filesize
3.8MB

MD5
3a3341c9a3ac8d6ce41648b7dd0a0833

SHA1
e85b61054617efacef18d81690039ad9836d2252

SHA256
37f9f19626205d00a93afe6442f238b04a21681fab19933e3168af970c4f110e

SHA512
9d3f22741c372cd1775973248c045c10f90448dd3263ba7d8b139c67b74bbc6c7861a85ef0d165c4692cbb042d98e2ac36139c1a635e188dca78296aa6e9c771

Download Submit
memory/1868-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1868-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2068-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download