Malware Analysis Report

2024-10-19 13:24

Sample ID 240817-p157zaygrm
Target a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118
SHA256 f5e144e546913f82d4a09e7651d810acef969dccc81bf326aaae8cc9a2c3ce5a
Tags
tinba banker discovery persistence 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

f5e144e546913f82d4a09e7651d810acef969dccc81bf326aaae8cc9a2c3ce5a

Threat Level: Known bad

The file a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Modifies registry class

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-17 12:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-17 12:48

Reported

2024-08-17 12:51

Platform

win7-20240729-en

Max time kernel

148s

Max time network

145s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\49A06261 = "C:\\Users\\Admin\\AppData\\Roaming\\49A06261\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe N/A

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 ggvruxovlbrm.com udp
US 216.218.185.162:80 ggvruxovlbrm.com tcp

Files

memory/1820-0-0x0000000000410000-0x0000000000413000-memory.dmp

memory/1820-1-0x0000000000400000-0x0000000000405000-memory.dmp

memory/1820-2-0x0000000000230000-0x0000000000232000-memory.dmp

memory/2264-5-0x0000000000160000-0x0000000000167000-memory.dmp

memory/1196-4-0x0000000002090000-0x0000000002097000-memory.dmp

memory/1196-3-0x0000000002090000-0x0000000002097000-memory.dmp

memory/1820-8-0x00000000020C0000-0x0000000002AC0000-memory.dmp

memory/1196-7-0x0000000002090000-0x0000000002097000-memory.dmp

memory/2264-15-0x00000000778D0000-0x0000000077A79000-memory.dmp

memory/1196-14-0x0000000077921000-0x0000000077922000-memory.dmp

memory/2264-13-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/2264-12-0x0000000077ACF000-0x0000000077AD1000-memory.dmp

memory/2264-11-0x0000000077ACF000-0x0000000077AD0000-memory.dmp

memory/2264-10-0x0000000077AD0000-0x0000000077AD1000-memory.dmp

memory/2264-9-0x0000000000160000-0x0000000000167000-memory.dmp

memory/1168-30-0x00000000001B0000-0x00000000001B7000-memory.dmp

memory/1116-29-0x0000000077921000-0x0000000077922000-memory.dmp

memory/1116-28-0x0000000001FE0000-0x0000000001FE7000-memory.dmp

memory/1192-27-0x0000000077921000-0x0000000077922000-memory.dmp

memory/1820-31-0x00000000020C0000-0x0000000002AC0000-memory.dmp

memory/1192-26-0x0000000001C20000-0x0000000001C27000-memory.dmp

memory/1196-25-0x00000000020A0000-0x00000000020A7000-memory.dmp

memory/1192-23-0x0000000001C20000-0x0000000001C27000-memory.dmp

memory/1196-21-0x00000000020A0000-0x00000000020A7000-memory.dmp

memory/1168-19-0x00000000001B0000-0x00000000001B7000-memory.dmp

memory/1116-17-0x0000000001FE0000-0x0000000001FE7000-memory.dmp

memory/2264-37-0x0000000000160000-0x0000000000167000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 12:48

Reported

2024-08-17 12:51

Platform

win10v2004-20240802-en

Max time kernel

138s

Max time network

125s

Command Line

sihost.exe

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\winver.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\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a2979fe9cc6cdfef0f36e6079f11a0ef_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2112 -ip 2112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 636

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 ggvruxovlbrm.com udp
US 216.218.185.162:80 ggvruxovlbrm.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 162.185.218.216.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/4652-0-0x0000000000410000-0x0000000000413000-memory.dmp

memory/4652-1-0x0000000000400000-0x0000000000405000-memory.dmp

memory/4652-3-0x0000000000400000-0x000000000046D000-memory.dmp

memory/4652-2-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2112-5-0x0000000002950000-0x0000000002957000-memory.dmp

memory/3564-11-0x00007FFF470ED000-0x00007FFF470EE000-memory.dmp

memory/3564-10-0x00000000003C0000-0x00000000003C7000-memory.dmp

memory/2112-12-0x00007FFF47050000-0x00007FFF47245000-memory.dmp

memory/2112-9-0x00000000774B2000-0x00000000774B3000-memory.dmp

memory/2112-8-0x0000000002950000-0x0000000002957000-memory.dmp

memory/4652-14-0x0000000000400000-0x0000000000404A00-memory.dmp

memory/2580-15-0x00000000008F0000-0x00000000008F7000-memory.dmp

memory/2580-16-0x00000000008F0000-0x00000000008F7000-memory.dmp

memory/2112-17-0x0000000002950000-0x0000000002957000-memory.dmp

memory/2112-19-0x00007FFF47050000-0x00007FFF47245000-memory.dmp

memory/2580-20-0x00007FFF47270000-0x00007FFF47271000-memory.dmp

memory/3564-22-0x00007FFF47280000-0x00007FFF47281000-memory.dmp

memory/3564-23-0x00007FFF47260000-0x00007FFF47261000-memory.dmp