blackmoon | b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 18:11

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General

Target

b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe
Size

3.8MB
MD5

55bce90441ab33f3a3614d09f6e5a817
SHA1

97bfca4cd7a9433de2dc0772d43c5912dc6f0ff0
SHA256

b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4
SHA512

109b42317ac2ead586f00a40501933f70a5e025f5fc56c8a128871c623659dc3096a0196e7ac35bf19c27ecf8006207dbd46578607d10af196338c52c173aba9
SSDEEP

49152:SGCOfN6X5tLLQTg20ITS/PPs/1kS4eKRL/SRsj0Zuur1T75YqVUrmNF98jW:X6XLq/qPPslzKx/dJg1ErmNT

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/2500-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral1/memory/2500-8-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral1/memory/2120-9-0x0000000000400000-0x0000000000428000-memory.dmp	family_blackmoon
behavioral1/files/0x000d000000012261-7.dat	family_blackmoon

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

Executes dropped EXE 1 IoCs

Processes:

xrxrrll.exe

pid	Process
2120	xrxrrll.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2500-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/memory/2500-8-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/memory/2120-9-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/files/0x000d000000012261-7.dat	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1040	2120	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:

b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exexrxrrll.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xrxrrll.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exexrxrrll.exe

description	pid	Process	procid_target
PID 2500 wrote to memory of 2120	2500	b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe	30
PID 2500 wrote to memory of 2120	2500	b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe	30
PID 2500 wrote to memory of 2120	2500	b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe	30
PID 2500 wrote to memory of 2120	2500	b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe	30
PID 2120 wrote to memory of 1040	2120	xrxrrll.exe	31
PID 2120 wrote to memory of 1040	2120	xrxrrll.exe	31
PID 2120 wrote to memory of 1040	2120	xrxrrll.exe	31
PID 2120 wrote to memory of 1040	2120	xrxrrll.exe	31

C:\Users\Admin\AppData\Local\Temp\b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe
"C:\Users\Admin\AppData\Local\Temp\b5dfd68d0085e04fa7f609b29f598fc7ea7ee7aa41a542f5195efc2c67038fe4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- \??\c:\xrxrrll.exe
  c:\xrxrrll.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 36
    3⤵
    - Program crash
    PID:1040

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:\xrxrrll.exe

Filesize
3.8MB

MD5
e1893111c9557cef3fa615b9dc24bb08

SHA1
0434415aaf6ad379c1e4aae77056ba1bd3dcd45d

SHA256
270a42ac093be654cd138544f1a5ee943b4568657c896875165b0a01768fc6e8

SHA512
fa7f8166e845544dc9d85dc73e5c7419d94765e0eec4d45297217ae87a24a9a40c2e4dd4f26c7b63b204df42c92a722f4d34a3f0e68738db0b6b4d9660580723

Download Submit
memory/2120-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2500-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2500-6-0x00000000001B0000-0x00000000001D8000-memory.dmp

Filesize
160KB

Download
memory/2500-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download