Malware Analysis Report

2025-01-19 07:34

Sample ID 231106-a4mgpsgf76
Target NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.exe
SHA256 9686c43ff9c4e41ba1a3ef7b2d9f34eb8dbd418551f0138530d65b0b1dca4b86
Tags
upx 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

9686c43ff9c4e41ba1a3ef7b2d9f34eb8dbd418551f0138530d65b0b1dca4b86

Threat Level: Known bad

The file NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker persistence trojan

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-06 00:46

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-06 00:46

Reported

2023-11-06 00:48

Platform

win7-20231020-en

Max time kernel

150s

Max time network

151s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\F21D6DCB = "C:\\Users\\Admin\\AppData\\Roaming\\F21D6DCB\\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 behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A 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 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\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.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/1772-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1772-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1772-2-0x0000000001D00000-0x0000000002700000-memory.dmp

memory/2864-4-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1252-3-0x0000000001DB0000-0x0000000001DB6000-memory.dmp

memory/1252-7-0x0000000001DB0000-0x0000000001DB6000-memory.dmp

memory/1252-11-0x00000000771B1000-0x00000000771B2000-memory.dmp

memory/2864-10-0x0000000077360000-0x0000000077361000-memory.dmp

memory/2864-9-0x000000007735F000-0x0000000077361000-memory.dmp

memory/2864-8-0x000000007735F000-0x0000000077360000-memory.dmp

memory/2864-6-0x0000000000990000-0x00000000009A6000-memory.dmp

memory/1772-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1772-13-0x0000000001D00000-0x0000000002700000-memory.dmp

memory/2864-15-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2864-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1112-21-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

memory/1112-22-0x00000000771B1000-0x00000000771B2000-memory.dmp

memory/2864-24-0x0000000000140000-0x0000000000146000-memory.dmp

memory/1164-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1164-26-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1252-28-0x00000000021C0000-0x00000000021C6000-memory.dmp

memory/2864-32-0x0000000000190000-0x0000000000191000-memory.dmp

memory/1252-33-0x0000000077340000-0x0000000077341000-memory.dmp

memory/1252-34-0x0000000077320000-0x0000000077321000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-06 00:46

Reported

2023-11-06 00:48

Platform

win10v2004-20231023-en

Max time kernel

7s

Max time network

11s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0DF79B24 = "C:\\Users\\Admin\\AppData\\Roaming\\0DF79B24\\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 FindShellTrayWindow

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

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\svchost.exe

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

C:\Users\Admin\AppData\Local\Temp\NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e1ba6cec3c9fa3d06d7aeb20348950b0.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 32.101.122.92.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/4560-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4560-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3316-2-0x0000000000830000-0x0000000000836000-memory.dmp

memory/3316-3-0x0000000000830000-0x0000000000836000-memory.dmp

memory/1116-5-0x0000000077A42000-0x0000000077A43000-memory.dmp

memory/4560-4-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/3316-6-0x00007FFC04A2D000-0x00007FFC04A2E000-memory.dmp

memory/1116-7-0x0000000000B30000-0x0000000000B36000-memory.dmp

memory/4560-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4560-9-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/2772-13-0x0000000000010000-0x0000000000016000-memory.dmp

memory/2736-15-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

memory/2856-14-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/2772-16-0x0000000000010000-0x0000000000016000-memory.dmp

memory/3464-19-0x0000000000F60000-0x0000000000F66000-memory.dmp

memory/3696-21-0x0000000000A00000-0x0000000000A06000-memory.dmp