Malware Analysis Report

2024-09-22 16:22

Sample ID 240109-xcfleahbe3
Target 4e6b6918844989e1bacf66134b2c6edb.exe
SHA256 79098ca859c7c8f8c4a66fc490f6644897707a20530acfc997b4661cbfd9c2f9
Tags
fickerstealer infostealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

79098ca859c7c8f8c4a66fc490f6644897707a20530acfc997b4661cbfd9c2f9

Threat Level: Known bad

The file 4e6b6918844989e1bacf66134b2c6edb.exe was found to be: Known bad.

Malicious Activity Summary

fickerstealer infostealer

Fickerstealer

Looks up external IP address via web service

Suspicious use of SetThreadContext

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-09 18:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-09 18:42

Reported

2024-01-09 18:45

Platform

win7-20231215-en

Max time kernel

144s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

Signatures

Fickerstealer

infostealer fickerstealer

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1344 set thread context of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 1344 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 104.237.62.212:80 api.ipify.org tcp
RU 80.87.192.115:80 tcp

Files

memory/1344-2-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/1344-4-0x0000000000220000-0x0000000000267000-memory.dmp

memory/2672-7-0x0000000000400000-0x000000000044F000-memory.dmp

memory/2672-5-0x0000000000400000-0x000000000044F000-memory.dmp

memory/2672-8-0x0000000000400000-0x000000000044F000-memory.dmp

memory/2672-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

C:\ProgramData\kaosdma.txt

MD5 8cf4dec152a9d79a3d62202b886eda9b
SHA1 0c1b3d3d02c0b655aa3526a58486b84872f18cc2
SHA256 c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01
SHA512 a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

memory/2672-14-0x0000000000400000-0x000000000044F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-09 18:42

Reported

2024-01-09 18:45

Platform

win10v2004-20231215-en

Max time kernel

146s

Max time network

163s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

Signatures

Fickerstealer

infostealer fickerstealer

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3684 set thread context of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe
PID 3684 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe

"C:\Users\Admin\AppData\Local\Temp\4e6b6918844989e1bacf66134b2c6edb.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 177.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 104.237.62.212:80 api.ipify.org tcp
US 8.8.8.8:53 212.62.237.104.in-addr.arpa udp
RU 80.87.192.115:80 tcp
US 8.8.8.8:53 115.192.87.80.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 28.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 91.65.42.20.in-addr.arpa udp

Files

memory/3684-1-0x0000000000500000-0x0000000000600000-memory.dmp

memory/3684-2-0x00000000021D0000-0x0000000002217000-memory.dmp

memory/3776-5-0x0000000000400000-0x000000000044F000-memory.dmp

memory/3776-3-0x0000000000400000-0x000000000044F000-memory.dmp

memory/3776-6-0x0000000000400000-0x000000000044F000-memory.dmp

C:\ProgramData\kaosdma.txt

MD5 8cf4dec152a9d79a3d62202b886eda9b
SHA1 0c1b3d3d02c0b655aa3526a58486b84872f18cc2
SHA256 c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01
SHA512 a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

memory/3776-13-0x0000000000400000-0x000000000044F000-memory.dmp