Malware Analysis Report

2024-09-23 00:43

Sample ID 240512-m25xgsfb26
Target StormKittyBuild.exe
SHA256 3106f3defd63051dd4652582b58c1f030c102f5f6e49a10e3e008df6e7a27fc1
Tags
stormkitty stealer
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

3106f3defd63051dd4652582b58c1f030c102f5f6e49a10e3e008df6e7a27fc1

Threat Level: Known bad

The file StormKittyBuild.exe was found to be: Known bad.

Malicious Activity Summary

stormkitty stealer

StormKitty payload

Stormkitty family

StormKitty

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-05-12 10:58

Signatures

StormKitty payload

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

Stormkitty family

stormkitty

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-12 10:58

Reported

2024-05-12 11:01

Platform

win7-20240221-en

Max time kernel

117s

Max time network

136s

Command Line

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

Signatures

StormKitty

stealer stormkitty

StormKitty payload

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\StormKittyBuild.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\StormKittyBuild.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.111.133:443 raw.githubusercontent.com tcp
US 185.199.111.133:443 raw.githubusercontent.com tcp
US 185.199.111.133:443 raw.githubusercontent.com tcp

Files

memory/1688-0-0x000007FEF51A3000-0x000007FEF51A4000-memory.dmp

memory/1688-1-0x0000000000080000-0x00000000000E2000-memory.dmp

memory/1688-2-0x0000000000240000-0x00000000002C8000-memory.dmp

memory/1688-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/1688-4-0x000007FEF51A0000-0x000007FEF5B8C000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

C:\Users\Admin\AppData\Local\Temp\Tar595D.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

memory/1688-182-0x000007FEF51A3000-0x000007FEF51A4000-memory.dmp

memory/1688-183-0x000007FEF51A0000-0x000007FEF5B8C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-12 10:58

Reported

2024-05-12 11:01

Platform

win10v2004-20240426-en

Max time kernel

133s

Max time network

118s

Command Line

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

Signatures

StormKitty

stealer stormkitty

StormKitty payload

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\StormKittyBuild.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\StormKittyBuild.exe N/A

Processes

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

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

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
NL 23.62.61.139:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 139.61.62.23.in-addr.arpa udp
NL 23.62.61.139:443 www.bing.com tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.110.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 133.110.199.185.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/3224-0-0x00007FFA95283000-0x00007FFA95285000-memory.dmp

memory/3224-1-0x0000000000880000-0x00000000008E2000-memory.dmp

memory/3224-2-0x000000001B540000-0x000000001B5C8000-memory.dmp

memory/3224-3-0x0000000002940000-0x0000000002946000-memory.dmp

memory/3224-4-0x00007FFA95280000-0x00007FFA95D41000-memory.dmp

memory/3224-5-0x00007FFA95283000-0x00007FFA95285000-memory.dmp

memory/3224-6-0x00007FFA95280000-0x00007FFA95D41000-memory.dmp