Malware Analysis Report

2025-01-19 07:23

Sample ID 231219-1ltq6sdbf7
Target aa825c0fe39dd954f2ea338e27e213f8
SHA256 dfcc2a806fa4bde3a2caf15dc2b4061cdf3e68ba8c09bf596f877c52d13baf99
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

dfcc2a806fa4bde3a2caf15dc2b4061cdf3e68ba8c09bf596f877c52d13baf99

Threat Level: Known bad

The file aa825c0fe39dd954f2ea338e27e213f8 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 21:44

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 21:44

Reported

2023-12-20 17:23

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa825c0fe39dd954f2ea338e27e213f8.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5294FA42 = "C:\\Users\\Admin\\AppData\\Roaming\\5294FA42\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

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

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

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:\Users\Admin\AppData\Local\Temp\aa825c0fe39dd954f2ea338e27e213f8.exe

"C:\Users\Admin\AppData\Local\Temp\aa825c0fe39dd954f2ea338e27e213f8.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1432 -ip 1432

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 146.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2316-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/3408-1-0x00000000026E0000-0x00000000026E6000-memory.dmp

memory/2316-3-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/1432-7-0x0000000000E20000-0x0000000000E32000-memory.dmp

memory/3408-6-0x00007FFE3684D000-0x00007FFE3684E000-memory.dmp

memory/3408-8-0x00007FFE369E0000-0x00007FFE369E1000-memory.dmp

memory/1432-5-0x0000000077A42000-0x0000000077A43000-memory.dmp

memory/1432-4-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

memory/3408-2-0x00000000026E0000-0x00000000026E6000-memory.dmp

memory/2316-9-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2316-10-0x0000000002340000-0x0000000002D40000-memory.dmp

memory/2508-14-0x0000000000550000-0x0000000000556000-memory.dmp

memory/1432-15-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 21:44

Reported

2023-12-20 17:23

Platform

win7-20231215-en

Max time kernel

149s

Max time network

147s

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-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\D444AC39 = "C:\\Users\\Admin\\AppData\\Roaming\\D444AC39\\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

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Users\Admin\AppData\Local\Temp\aa825c0fe39dd954f2ea338e27e213f8.exe

"C:\Users\Admin\AppData\Local\Temp\aa825c0fe39dd954f2ea338e27e213f8.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 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

Files

memory/1848-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1848-2-0x0000000001DF0000-0x00000000027F0000-memory.dmp

memory/1072-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/2632-4-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1072-3-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/1072-10-0x0000000077631000-0x0000000077632000-memory.dmp

memory/2632-9-0x00000000777E0000-0x00000000777E1000-memory.dmp

memory/2632-8-0x00000000777DF000-0x00000000777E1000-memory.dmp

memory/2632-7-0x00000000777DF000-0x00000000777E0000-memory.dmp

memory/2632-6-0x00000000007B0000-0x00000000007C6000-memory.dmp

memory/1072-5-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/1848-11-0x0000000000400000-0x0000000000411000-memory.dmp

memory/1848-12-0x0000000001DF0000-0x00000000027F0000-memory.dmp

memory/2632-14-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2632-15-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1072-20-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/1112-22-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1040-24-0x0000000077631000-0x0000000077632000-memory.dmp

memory/1040-23-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1072-25-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

memory/1112-26-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/2632-30-0x0000000000160000-0x0000000000166000-memory.dmp

memory/2632-31-0x00000000001B0000-0x00000000001B1000-memory.dmp