Malware Analysis Report

2024-10-19 13:24

Sample ID 240404-v9lgtadh3v
Target be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118
SHA256 857b02db2f229320eaf6e05c48c028f0d0cbf52fffbee2ad4515de41d69609d8
Tags
tinba banker 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

857b02db2f229320eaf6e05c48c028f0d0cbf52fffbee2ad4515de41d69609d8

Threat Level: Known bad

The file be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-04 17:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 17:41

Reported

2024-04-04 17:43

Platform

win7-20231129-en

Max time kernel

149s

Max time network

146s

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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\82A89DFE = "C:\\Users\\Admin\\AppData\\Roaming\\82A89DFE\\bin.exe" C:\Windows\SysWOW64\winver.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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.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:\Users\Admin\AppData\Local\Temp\be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 216.218.185.162:80 spaines.pw tcp
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
US 104.131.68.180:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 216.218.185.162:80 cmnsgscccrej.pw tcp
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 216.218.185.162:80 evbsdqvgmpph.pw tcp
US 8.8.8.8:53 mfueeimvyrsp.pw udp
US 216.218.185.162:80 mfueeimvyrsp.pw tcp
US 8.8.8.8:53 utmyhnffxpcj.pw udp
US 216.218.185.162:80 utmyhnffxpcj.pw tcp
US 8.8.8.8:53 fkmmvfeonnyh.pw udp
US 216.218.185.162:80 fkmmvfeonnyh.pw tcp
US 8.8.8.8:53 gfnlmtcolrrb.pw udp
US 216.218.185.162:80 gfnlmtcolrrb.pw tcp
US 8.8.8.8:53 wwgfyvvdtmeq.pw udp
US 216.218.185.162:80 wwgfyvvdtmeq.pw tcp
US 8.8.8.8:53 xtbbpqfrsubt.pw udp
US 216.218.185.162:80 xtbbpqfrsubt.pw tcp

Files

memory/944-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/944-2-0x0000000001B40000-0x0000000002540000-memory.dmp

memory/2460-3-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1304-1-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1304-5-0x0000000002510000-0x0000000002516000-memory.dmp

memory/1304-10-0x0000000076E21000-0x0000000076E22000-memory.dmp

memory/2460-9-0x0000000076FD0000-0x0000000076FD1000-memory.dmp

memory/2460-8-0x0000000076FCF000-0x0000000076FD1000-memory.dmp

memory/2460-7-0x0000000076FCF000-0x0000000076FD0000-memory.dmp

memory/2460-6-0x0000000000C50000-0x0000000000C66000-memory.dmp

memory/944-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/944-12-0x0000000001B40000-0x0000000002540000-memory.dmp

memory/2460-14-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2460-15-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1256-20-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1304-22-0x00000000024C0000-0x00000000024C6000-memory.dmp

memory/1256-25-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1184-24-0x0000000076E21000-0x0000000076E22000-memory.dmp

memory/1304-26-0x00000000024C0000-0x00000000024C6000-memory.dmp

memory/1184-23-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/2460-30-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2460-31-0x00000000001B0000-0x00000000001B1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 17:41

Reported

2024-04-04 17:44

Platform

win10v2004-20240226-en

Max time kernel

16s

Max time network

17s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C6A0A628 = "C:\\Users\\Admin\\AppData\\Roaming\\C6A0A628\\bin.exe" C:\Windows\SysWOW64\winver.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

Suspicious use of FindShellTrayWindow

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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Windows\system32\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\be98442f9c8ab3dbf5fa001fcaa77f6c_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 139.110.86.104.in-addr.arpa udp

Files

memory/3044-0-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3044-1-0x00000000021B0000-0x0000000002BB0000-memory.dmp

memory/2156-4-0x0000000002A50000-0x0000000002A56000-memory.dmp

memory/3548-2-0x0000000001220000-0x0000000001226000-memory.dmp

memory/2156-5-0x0000000077682000-0x0000000077683000-memory.dmp

memory/3548-3-0x0000000001220000-0x0000000001226000-memory.dmp

memory/3548-6-0x00007FFE7810D000-0x00007FFE7810E000-memory.dmp

memory/3548-7-0x00007FFE782A0000-0x00007FFE782A1000-memory.dmp

memory/3044-8-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3044-9-0x00000000021B0000-0x0000000002BB0000-memory.dmp

memory/3548-10-0x00007FFE78280000-0x00007FFE78281000-memory.dmp

memory/2664-14-0x0000000000FC0000-0x0000000000FC6000-memory.dmp

memory/2796-15-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/3748-19-0x0000000000530000-0x0000000000536000-memory.dmp

memory/2796-21-0x00000000006A0000-0x00000000006A6000-memory.dmp