Malware Analysis Report

2025-01-19 07:24

Sample ID 231105-gbepqadc47
Target NEAS.e2f582e8058b88f28fe04095ed8450d0_JC.exe
SHA256 f668e1aa074283236c063a97c3b5e8b974604c514b4fbfd1b135e331887cde02
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

f668e1aa074283236c063a97c3b5e8b974604c514b4fbfd1b135e331887cde02

Threat Level: Known bad

The file NEAS.e2f582e8058b88f28fe04095ed8450d0_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

2023-11-05 05:37

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

2023-11-05 05:37

Reported

2023-11-05 05:40

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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\F4A52A7C = "C:\\Users\\Admin\\AppData\\Roaming\\F4A52A7C\\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\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.e2f582e8058b88f28fe04095ed8450d0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e2f582e8058b88f28fe04095ed8450d0_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

Files

memory/2468-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2468-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2468-3-0x0000000001E40000-0x0000000002840000-memory.dmp

memory/1216-4-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/2628-6-0x000000007700F000-0x0000000077010000-memory.dmp

memory/2628-9-0x0000000077010000-0x0000000077011000-memory.dmp

memory/2628-11-0x0000000000910000-0x0000000000926000-memory.dmp

memory/1216-10-0x0000000076E61000-0x0000000076E62000-memory.dmp

memory/1216-8-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/2628-7-0x000000007700F000-0x0000000077011000-memory.dmp

memory/2628-5-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1216-2-0x0000000002B20000-0x0000000002B26000-memory.dmp

memory/2468-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2468-13-0x0000000001E40000-0x0000000002840000-memory.dmp

memory/2628-15-0x0000000000090000-0x0000000000096000-memory.dmp

memory/2628-16-0x0000000000110000-0x0000000000111000-memory.dmp

memory/1104-20-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

memory/1104-21-0x0000000076E61000-0x0000000076E62000-memory.dmp

memory/1152-22-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1152-25-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1216-24-0x0000000002B70000-0x0000000002B76000-memory.dmp

memory/1216-26-0x0000000002B70000-0x0000000002B76000-memory.dmp

memory/2628-30-0x0000000000120000-0x0000000000121000-memory.dmp

memory/1216-31-0x0000000076FF0000-0x0000000076FF1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-05 05:37

Reported

2023-11-05 05:40

Platform

win10v2004-20231025-en

Max time kernel

19s

Max time network

23s

Command Line

sihost.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-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CD445DFC = "C:\\Users\\Admin\\AppData\\Roaming\\CD445DFC\\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\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.e2f582e8058b88f28fe04095ed8450d0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.e2f582e8058b88f28fe04095ed8450d0_JC.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

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

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.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 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

memory/3824-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3824-1-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3208-3-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

memory/3824-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/3208-2-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

memory/748-5-0x00000000772C2000-0x00000000772C3000-memory.dmp

memory/3208-6-0x00007FFA215CD000-0x00007FFA215CE000-memory.dmp

memory/748-7-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

memory/3824-8-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3824-9-0x00000000022A0000-0x0000000002CA0000-memory.dmp

memory/3208-10-0x00007FFA21760000-0x00007FFA21761000-memory.dmp

memory/2448-14-0x0000000000080000-0x0000000000086000-memory.dmp

memory/2440-16-0x0000000000B60000-0x0000000000B66000-memory.dmp

memory/2612-15-0x0000000000300000-0x0000000000306000-memory.dmp

memory/2448-18-0x0000000000080000-0x0000000000086000-memory.dmp

memory/3412-20-0x0000000000720000-0x0000000000726000-memory.dmp

memory/3208-19-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

memory/3208-17-0x0000000000BE0000-0x0000000000BE6000-memory.dmp