Malware Analysis Report

2024-07-28 12:19

Sample ID 240628-dg65daxfpg
Target d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18
SHA256 d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18
Tags
tinba banker persistence trojan
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

d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18

Threat Level: Known bad

The file d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-28 02:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 02:59

Reported

2024-06-28 03:02

Platform

win7-20240611-en

Max time kernel

149s

Max time network

148s

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-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\7B71331A = "C:\\Users\\Admin\\AppData\\Roaming\\7B71331A\\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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2140 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 2140 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 2140 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 2140 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 2140 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 2036 wrote to memory of 1348 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2036 wrote to memory of 1224 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2036 wrote to memory of 1304 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2036 wrote to memory of 1348 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE

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\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe

"C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.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

Files

memory/2140-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2140-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2140-5-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/1348-4-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

memory/2036-11-0x0000000076E70000-0x0000000077019000-memory.dmp

memory/1348-10-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

memory/2036-9-0x000000007706F000-0x0000000077071000-memory.dmp

memory/2036-8-0x000000007706F000-0x0000000077070000-memory.dmp

memory/2036-7-0x0000000077070000-0x0000000077071000-memory.dmp

memory/2036-6-0x0000000000170000-0x0000000000176000-memory.dmp

memory/1348-3-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

memory/1348-2-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

memory/2140-12-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2140-13-0x0000000001D40000-0x0000000002740000-memory.dmp

memory/1348-23-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1304-21-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1224-24-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1304-27-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1348-26-0x00000000025E0000-0x00000000025E6000-memory.dmp

memory/1224-25-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

memory/2036-31-0x0000000000170000-0x0000000000176000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 02:59

Reported

2024-06-28 03:02

Platform

win10v2004-20240611-en

Max time kernel

141s

Max time network

127s

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-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\70D0289F = "C:\\Users\\Admin\\AppData\\Roaming\\70D0289F\\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
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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of UnmapMainImage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3988 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 3988 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 3988 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 3988 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe C:\Windows\SysWOW64\winver.exe
PID 3264 wrote to memory of 3460 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 3264 wrote to memory of 2640 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\sihost.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe

"C:\Users\Admin\AppData\Local\Temp\d244bd925860d63d72b35bacf06eb05f5cb529255f2492e4b1c9d01d6c492a18.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3972,i,3671441404766730751,12082497324212183132,262144 --variations-seed-version --mojo-platform-channel-handle=4136 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3264 -ip 3264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
BE 88.221.83.187:443 www.bing.com tcp
US 8.8.8.8:53 187.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 105.193.132.51.in-addr.arpa udp

Files

memory/3988-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3988-1-0x0000000000460000-0x0000000000461000-memory.dmp

memory/3460-3-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/3460-2-0x00000000010D0000-0x00000000010D6000-memory.dmp

memory/3988-4-0x0000000002090000-0x0000000002A90000-memory.dmp

memory/3460-7-0x00007FFD5A56C000-0x00007FFD5A56D000-memory.dmp

memory/3460-6-0x00007FFD5A56D000-0x00007FFD5A56E000-memory.dmp

memory/3264-5-0x0000000077AC2000-0x0000000077AC3000-memory.dmp

memory/3264-8-0x00007FFD5A4D0000-0x00007FFD5A6C5000-memory.dmp

memory/3988-9-0x0000000000400000-0x000000000041C000-memory.dmp

memory/3988-10-0x0000000002090000-0x0000000002A90000-memory.dmp

memory/3460-11-0x00007FFD5A700000-0x00007FFD5A701000-memory.dmp

memory/3460-12-0x00007FFD5A6E0000-0x00007FFD5A6E1000-memory.dmp

memory/3264-14-0x0000000002850000-0x0000000002856000-memory.dmp

memory/2640-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/3264-17-0x0000000002850000-0x0000000002856000-memory.dmp