Malware Analysis Report

2024-11-13 18:01

Sample ID 241109-3ydxlavdqr
Target aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN
SHA256 aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2ab
Tags
blackmoon banker discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2ab

Threat Level: Known bad

The file aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN was found to be: Known bad.

Malicious Activity Summary

blackmoon banker discovery trojan

Blackmoon family

Blackmoon, KrBanker

Detect Blackmoon payload

Deletes itself

Executes dropped EXE

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 23:55

Signatures

Blackmoon family

blackmoon

Detect Blackmoon payload

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 23:55

Reported

2024-11-09 23:57

Platform

win7-20241010-en

Max time kernel

13s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe"

Signatures

Blackmoon family

blackmoon

Blackmoon, KrBanker

trojan banker blackmoon

Detect Blackmoon payload

Description Indicator Process Target
N/A N/A N/A N/A

Deletes itself

Description Indicator Process Target
N/A N/A \??\c:\xfbrl.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A \??\c:\xfbrl.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe \??\c:\xfbrl.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language \??\c:\xfbrl.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe

"C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe"

\??\c:\xfbrl.exe

c:\xfbrl.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2280 -s 96

Network

N/A

Files

C:\xfbrl.exe

MD5 2a965aa6007c9c05aaf53ff416733447
SHA1 cb49138903ea33fe91393d3f3507ddd13f96196a
SHA256 39a14c59c5d668a915b9a30a5769e7d139de4c74b396c5184eafc4bd3770ca9b
SHA512 cb6b6236535f2ee98d00ebde700303dd348fbc70f908948ab44ecc07b7ec490f9fc8521be2da861eddbfde48e03f095983b93b12679769f3cb08123c603da394

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 23:55

Reported

2024-11-09 23:57

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe"

Signatures

Blackmoon family

blackmoon

Blackmoon, KrBanker

trojan banker blackmoon

Detect Blackmoon payload

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A \??\c:\httnhb.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe \??\c:\httnhb.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language \??\c:\httnhb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe

"C:\Users\Admin\AppData\Local\Temp\aa27ccab35b2c6efe143c22907cfca3364f3fc5367bded59c73f2b9acba7f2abN.exe"

\??\c:\httnhb.exe

c:\httnhb.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1176 -ip 1176

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1176 -s 292

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

C:\httnhb.exe

MD5 673136702f1491c52a2c4ce804bbad30
SHA1 2d15ef57d64821bc1d04952b67dd2a1f5a2be8c9
SHA256 6b48bc1ee576f6d7a040128ffdf9ebed9a999d7cfa215a179b8863a7ed08a264
SHA512 fe0332d473de8cb5b78e839f3c807c2a66729b16b8390c90e65c9c431b3b7ba6c01d90cdf28016cb947e186a1bca1dafd3dc2c2f111da7ff14dbc51da6b888b2