tinba | 7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684d

Analysis

max time kernel
114s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 00:08

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General

Target

7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe
Size

45KB
MD5

0692ae013d4e9da6038095edc674c950
SHA1

3682d75fc6012e9dbdc7b9f973eb9cbda82caca5
SHA256

7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684d
SHA512

672f62947c56243b4669326a4663f2a1339d9f33123b00eb3a446616b143fe894a1386447f4508aaec745610f63e830587319588287a58c74891505713761c84
SSDEEP

768:1hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:nsWE9N5dFu53dsniQaB/xZ14n7zIF+qh

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba
Tinba family
tinba

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FD42767A = "C:\\Users\\Admin\\AppData\\Roaming\\FD42767A\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3340-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
376	4704	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4704	winver.exe
4704	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4704	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3340 wrote to memory of 4704	3340	7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe	84
PID 3340 wrote to memory of 4704	3340	7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe	84
PID 3340 wrote to memory of 4704	3340	7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe	84
PID 3340 wrote to memory of 4704	3340	7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe	84
PID 4704 wrote to memory of 3444	4704	winver.exe	56
PID 4704 wrote to memory of 2980	4704	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2980

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe
  "C:\Users\Admin\AppData\Local\Temp\7ffc8267381a74942aca7555d9f72c0879145f0d8109491ed2a6e06a0dd4684dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 356
      4⤵
      Program crash
      PID:376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
1⤵
PID:4560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2980-15-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3340-11-0x0000000002160000-0x0000000002B60000-memory.dmp

Filesize
10.0MB

Download
memory/3340-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/3340-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3340-4-0x0000000002160000-0x0000000002B60000-memory.dmp

Filesize
10.0MB

Download
memory/3340-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3444-2-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3444-7-0x00007FFCED6ED000-0x00007FFCED6EE000-memory.dmp

Filesize
4KB

Download
memory/3444-3-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/4704-8-0x00007FFCED650000-0x00007FFCED845000-memory.dmp

Filesize
2.0MB

Download
memory/4704-5-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/4704-6-0x0000000077632000-0x0000000077633000-memory.dmp

Filesize
4KB

Download
memory/4704-16-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download