blackmoon | 020ec9567c682568aeb929310399e171e71a61f05dd718e940dfbbd3739026ca

General

Target

157.exe
Size

1.9MB
MD5

07c24fa99061341f54d447489136484f
SHA1

d4f8df213dfd5defdef5e8a74b6d377b4e081da1
SHA256

020ec9567c682568aeb929310399e171e71a61f05dd718e940dfbbd3739026ca
SHA512

e7a9cee85e81ebc7e7a291b5252b1002a6adf157b6ebbad9b3bd73c7ecfa08d34f3ab2bf1aba43703f864083a957ecf934589da508177bfbcb8fdb0f2c8c6ac9
SSDEEP

24576:PogCrOVMhbdWXkvIdPPF8pN0EtGXW3V+sLxdXJTbGTs3l:P4bnWPOb0EoXWddXJTbGk

Score

10^/10

blackmoon banker discovery evasion 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/320-1-0x0000000002490000-0x00000000024D1000-memory.dmp	family_blackmoon
behavioral2/memory/4912-8-0x0000000002320000-0x0000000002361000-memory.dmp	family_blackmoon
behavioral2/memory/320-10-0x0000000002490000-0x00000000024D1000-memory.dmp	family_blackmoon
behavioral2/memory/4912-13-0x0000000002320000-0x0000000002361000-memory.dmp	family_blackmoon

UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1548.002

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

BbHufzfykft.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" BbHufzfykft.exe
Deletes itself 1 IoCs

Processes:

BbHufzfykft.exe

pid process

4912 BbHufzfykft.exe
Executes dropped EXE 1 IoCs

Processes:

BbHufzfykft.exe

pid process

4912 BbHufzfykft.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

BbHufzfykft.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" BbHufzfykft.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	BbHufzfykft.exe

pid	process
4912	BbHufzfykft.exe

pid	process
4912	BbHufzfykft.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	BbHufzfykft.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/320-0-0x00000000025E0000-0x00000000025EB000-memory.dmp	upx
behavioral2/memory/320-2-0x00000000025E0000-0x00000000025EB000-memory.dmp	upx
behavioral2/memory/4912-9-0x0000000002270000-0x000000000227B000-memory.dmp	upx
behavioral2/memory/4912-7-0x0000000002270000-0x000000000227B000-memory.dmp	upx
behavioral2/memory/4912-14-0x0000000002270000-0x000000000227B000-memory.dmp	upx
behavioral2/memory/4912-16-0x00000000001D0000-0x00000000001DB000-memory.dmp	upx
behavioral2/memory/4912-44-0x00000000001D0000-0x00000000001DB000-memory.dmp	upx

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:

157.exeBbHufzfykft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	157.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BbHufzfykft.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

BbHufzfykft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	BbHufzfykft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	BbHufzfykft.exe

Modifies registry class 7 IoCs

Processes:

BbHufzfykft.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XBMzbU JyQPQ\Shell\Open	BbHufzfykft.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\XBMzbU JyQPQ\Shell\Open\Command\ = "\"C:\\Users\\Public\\Downloads\\BbHufzfykft.exe\"wsATZrxO MzrcNnZS HdNYLNbF"	BbHufzfykft.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.GTtx	BbHufzfykft.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.GTtx\ = "XBMzbU JyQPQ"	BbHufzfykft.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XBMzbU JyQPQ\Shell\Open\Command	BbHufzfykft.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XBMzbU JyQPQ	BbHufzfykft.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\XBMzbU JyQPQ\Shell	BbHufzfykft.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

157.exeBbHufzfykft.exe

pid	process
320	157.exe
320	157.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe
4912	BbHufzfykft.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

BbHufzfykft.exe

description pid process

Token: SeDebugPrivilege 4912 BbHufzfykft.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

157.exeBbHufzfykft.exe

pid process

320 157.exe
320 157.exe
4912 BbHufzfykft.exe
4912 BbHufzfykft.exe

description	pid	process
Token: SeDebugPrivilege	4912	BbHufzfykft.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

157.exe

description	pid	process	target process
PID 320 wrote to memory of 4912	320	157.exe	BbHufzfykft.exe
PID 320 wrote to memory of 4912	320	157.exe	BbHufzfykft.exe
PID 320 wrote to memory of 4912	320	157.exe	BbHufzfykft.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

BbHufzfykft.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" BbHufzfykft.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	BbHufzfykft.exe

C:\Users\Admin\AppData\Local\Temp\157.exe
"C:\Users\Admin\AppData\Local\Temp\157.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:320
- C:\Users\Public\Downloads\BbHufzfykft.exe
  WTnIGTZFAXDJbJeR
  2⤵
  - UAC bypass
  - Deletes itself
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:4912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\Downloads\BbHufzfykft.exe

Filesize
1.9MB

MD5
07c24fa99061341f54d447489136484f

SHA1
d4f8df213dfd5defdef5e8a74b6d377b4e081da1

SHA256
020ec9567c682568aeb929310399e171e71a61f05dd718e940dfbbd3739026ca

SHA512
e7a9cee85e81ebc7e7a291b5252b1002a6adf157b6ebbad9b3bd73c7ecfa08d34f3ab2bf1aba43703f864083a957ecf934589da508177bfbcb8fdb0f2c8c6ac9

Download Submit
memory/320-10-0x0000000002490000-0x00000000024D1000-memory.dmp

Filesize
260KB

Download
memory/320-1-0x0000000002490000-0x00000000024D1000-memory.dmp

Filesize
260KB

Download
memory/320-2-0x00000000025E0000-0x00000000025EB000-memory.dmp

Filesize
44KB

Download
memory/320-0-0x00000000025E0000-0x00000000025EB000-memory.dmp

Filesize
44KB

Download
memory/4912-13-0x0000000002320000-0x0000000002361000-memory.dmp

Filesize
260KB

Download
memory/4912-7-0x0000000002270000-0x000000000227B000-memory.dmp

Filesize
44KB

Download
memory/4912-9-0x0000000002270000-0x000000000227B000-memory.dmp

Filesize
44KB

Download
memory/4912-8-0x0000000002320000-0x0000000002361000-memory.dmp

Filesize
260KB

Download
memory/4912-14-0x0000000002270000-0x000000000227B000-memory.dmp

Filesize
44KB

Download
memory/4912-16-0x00000000001D0000-0x00000000001DB000-memory.dmp

Filesize
44KB

Download
memory/4912-17-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/4912-18-0x0000000000A10000-0x0000000000A11000-memory.dmp

Filesize
4KB

Download
memory/4912-21-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/4912-20-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/4912-19-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/4912-44-0x00000000001D0000-0x00000000001DB000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads