blackmoon | a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2

General

Target

a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
Size

2.9MB
MD5

e42d1929b5179466c176cf2bae29f899
SHA1

c88ff0b920cf5c818b183f7166503ee2b7eadcdb
SHA256

a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2
SHA512

002346d8590da139ce7838a4fc20668a7a55773fd5faf9d4fe961a2dddd88033eba33cb1c54ffc6dd8ef038f1b65a92c7c1926060dfd0007625d57d4b8eeafa7
SSDEEP

24576:pCKzARimQzNe4Za8iX5FfrVjePHS1Q2d7VITbSAcQwKXo58OKIbs5ffzxGtm3qzx:pCQ1I5uPHE9xWnFItf/BTJBaQPGdwn5

Score

10^/10

blackmoon banker trojan

Malware Config

Signatures

Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
trojan banker blackmoon

Detect Blackmoon payload 5 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023223-12.dat	family_blackmoon
behavioral2/files/0x0008000000023223-16.dat	family_blackmoon
behavioral2/files/0x0008000000023223-15.dat	family_blackmoon
behavioral2/files/0x0004000000021a08-19.dat	family_blackmoon
behavioral2/files/0x0004000000021a08-20.dat	family_blackmoon

Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe

Executes dropped EXE 2 IoCs

pid	Process
3372	X52LG-1116A.exe
4144	X52LG-1116A.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fktx.txt	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
File created	C:\Windows\SysWOW64\X52lgOldFile.txt	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
File opened for modification	C:\Windows\SysWOW64\fktx.txt	X52LG-1116A.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
Token: SeDebugPrivilege	3372	X52LG-1116A.exe
Token: SeDebugPrivilege	4144	X52LG-1116A.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
3372	X52LG-1116A.exe
3372	X52LG-1116A.exe
4144	X52LG-1116A.exe
4144	X52LG-1116A.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 3372	2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe	100
PID 2756 wrote to memory of 3372	2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe	100
PID 2756 wrote to memory of 3372	2756	a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe	100
PID 3372 wrote to memory of 4144	3372	X52LG-1116A.exe	101
PID 3372 wrote to memory of 4144	3372	X52LG-1116A.exe	101
PID 3372 wrote to memory of 4144	3372	X52LG-1116A.exe	101

C:\Users\Admin\AppData\Local\Temp\a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe
"C:\Users\Admin\AppData\Local\Temp\a520fa28c62a821d17f059e6a2e06ffbcf6e65a5a5aa28dc72ebee42b46ffca2.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\Desktop\X52LG-1116A.exe
  "C:\Users\Admin\Desktop\X52LG-1116A.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3372
- - C:\Users\Admin\AppData\Local\Temp\X52LG-1116A.exe
    C:\Users\Admin\AppData\Local\Temp\X52LG-1116A.exe |C:\Users\Admin\Desktop\X52LG-1116A.exe
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\X52LG-1116A.exe

Filesize
2.9MB

MD5
4b25f6b60a020a2e451394a847a1a621

SHA1
44528c86a2eb418264dd54a80766e396c98403d2

SHA256
8f83e137919e56010692dcff407f4507b75cb1a0badb7f2201f4a791b4dd937d

SHA512
cced0b4be100b88df9873ede93a1a13a098d901b7e1acba180515565a711752f94137c928839fbaf4ea79caafd110bb7a1e106922a7db234c5c5edb8ae44302a

Download Submit
C:\Users\Admin\AppData\Local\Temp\X52LG-1116A.exe

Filesize
2.9MB

MD5
4b25f6b60a020a2e451394a847a1a621

SHA1
44528c86a2eb418264dd54a80766e396c98403d2

SHA256
8f83e137919e56010692dcff407f4507b75cb1a0badb7f2201f4a791b4dd937d

SHA512
cced0b4be100b88df9873ede93a1a13a098d901b7e1acba180515565a711752f94137c928839fbaf4ea79caafd110bb7a1e106922a7db234c5c5edb8ae44302a

Download Submit
C:\Users\Admin\Desktop\X52LG-1116A.exe

Filesize
2.9MB

MD5
4b25f6b60a020a2e451394a847a1a621

SHA1
44528c86a2eb418264dd54a80766e396c98403d2

SHA256
8f83e137919e56010692dcff407f4507b75cb1a0badb7f2201f4a791b4dd937d

SHA512
cced0b4be100b88df9873ede93a1a13a098d901b7e1acba180515565a711752f94137c928839fbaf4ea79caafd110bb7a1e106922a7db234c5c5edb8ae44302a

Download Submit
C:\Users\Admin\Desktop\X52LG-1116A.exe

Filesize
2.9MB

MD5
4b25f6b60a020a2e451394a847a1a621

SHA1
44528c86a2eb418264dd54a80766e396c98403d2

SHA256
8f83e137919e56010692dcff407f4507b75cb1a0badb7f2201f4a791b4dd937d

SHA512
cced0b4be100b88df9873ede93a1a13a098d901b7e1acba180515565a711752f94137c928839fbaf4ea79caafd110bb7a1e106922a7db234c5c5edb8ae44302a

Download Submit
C:\Users\Admin\Desktop\X52LG-1116A.exe

Filesize
2.9MB

MD5
4b25f6b60a020a2e451394a847a1a621

SHA1
44528c86a2eb418264dd54a80766e396c98403d2

SHA256
8f83e137919e56010692dcff407f4507b75cb1a0badb7f2201f4a791b4dd937d

SHA512
cced0b4be100b88df9873ede93a1a13a098d901b7e1acba180515565a711752f94137c928839fbaf4ea79caafd110bb7a1e106922a7db234c5c5edb8ae44302a

Download Submit
C:\Windows\SysWOW64\fktx.txt

Filesize
4B

MD5
605ac7e4c16b8a013b4779b81f883e66

SHA1
d494d9da2ea46248e528af1f4da8061e3f245369

SHA256
fbc1f6898b3fd1d2d806fcb944fe535ff5f4a1d973d8ef218558dd2e9ae526a3

SHA512
8c3338adba5c423598ef3eab334979e66e58e7524e28124431c0bec09270cc3cb50a1d8c57dd44b5f2a904d7d5c3b544d97380b0bbf37b7c72d84328c26b1b0f

Download Submit

Analysis

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