Malware Analysis Report

2025-01-19 07:30

Sample ID 231023-zkncbsfd2x
Target NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.exe
SHA256 d33dc75548887bd2e541af55f38a55e15c6f02e0a11b700773dd8258b7679565
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

d33dc75548887bd2e541af55f38a55e15c6f02e0a11b700773dd8258b7679565

Threat Level: Known bad

The file NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.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 behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-23 20:46

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

2023-10-23 20:46

Reported

2023-10-23 21:06

Platform

win7-20231020-en

Max time kernel

150s

Max time network

153s

Command Line

"taskhost.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\E5CC12B9 = "C:\\Users\\Admin\\AppData\\Roaming\\E5CC12B9\\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

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\NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.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
NL 192.42.116.41:80 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
US 8.8.8.8:53 vrmtybxxpddg.pw udp
US 216.218.185.162:80 vrmtybxxpddg.pw tcp
US 8.8.8.8:53 rvqlfnedcldh.pw udp
US 8.8.8.8:53 fccfxejgtpqb.pw udp
US 216.218.185.162:80 fccfxejgtpqb.pw tcp
US 8.8.8.8:53 sotdecjvilon.pw udp
US 216.218.185.162:80 sotdecjvilon.pw tcp

Files

memory/1716-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1716-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1716-3-0x0000000001C60000-0x0000000002660000-memory.dmp

memory/2280-5-0x0000000000180000-0x0000000000186000-memory.dmp

memory/1204-4-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/1204-2-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/2280-8-0x0000000077A3F000-0x0000000077A41000-memory.dmp

memory/1204-7-0x0000000002A80000-0x0000000002A86000-memory.dmp

memory/2280-6-0x0000000077A3F000-0x0000000077A40000-memory.dmp

memory/1204-10-0x0000000077891000-0x0000000077892000-memory.dmp

memory/2280-9-0x0000000077A40000-0x0000000077A41000-memory.dmp

memory/2280-11-0x00000000002E0000-0x00000000002F6000-memory.dmp

memory/1716-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1716-13-0x0000000001C60000-0x0000000002660000-memory.dmp

memory/2280-16-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2280-15-0x0000000000180000-0x0000000000186000-memory.dmp

memory/1120-21-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1204-25-0x0000000077A20000-0x0000000077A21000-memory.dmp

memory/1204-26-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/1120-23-0x0000000077891000-0x0000000077892000-memory.dmp

memory/1176-22-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1176-27-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1204-28-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/2280-32-0x0000000000250000-0x0000000000251000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-23 20:46

Reported

2023-10-23 21:06

Platform

win10v2004-20231023-en

Max time kernel

8s

Max time network

13s

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\A8976E15 = "C:\\Users\\Admin\\AppData\\Roaming\\A8976E15\\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\svchost.exe

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

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.d0ec58fed1a98fe11d1dd27ed308d650_JC.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Files

memory/764-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/764-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/764-3-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/3168-2-0x00000000012A0000-0x00000000012A6000-memory.dmp

memory/1448-5-0x0000000077552000-0x0000000077553000-memory.dmp

memory/3168-4-0x00000000012A0000-0x00000000012A6000-memory.dmp

memory/1448-7-0x00000000011A0000-0x00000000011A6000-memory.dmp

memory/3168-6-0x00007FFCAE74D000-0x00007FFCAE74E000-memory.dmp

memory/764-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/764-9-0x00000000022D0000-0x0000000002CD0000-memory.dmp

memory/2532-13-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/2512-14-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2636-15-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/2532-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3168-19-0x0000000001200000-0x0000000001206000-memory.dmp