tinba | a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506

Analysis

max time kernel
106s
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
04-12-2024 01:00

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General

Target

a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe
Size

45KB
MD5

f66e747314ab13ed85ccbb173e17627f
SHA1

c73457ffcc48ed87ed566e248d8bde9229090d98
SHA256

a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506
SHA512

2590fbda1db5c8408712abc6268d206ba88d9b4d4671ec410fa74b13e5ef9192199ed9427e9a84e413d553a5b68e3abb3a9da31517f560bbc11334b7187e9693
SSDEEP

768:OhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2V:CsWE9N5dFu53dsniQaB/xZ14n7zIF+q5

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E8DB62EC = "C:\\Users\\Admin\\AppData\\Roaming\\E8DB62EC\\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/3996-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4868	1116	WerFault.exe	83

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	a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1116	winver.exe
1116	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1116	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 1116	3996	a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe	83
PID 3996 wrote to memory of 1116	3996	a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe	83
PID 3996 wrote to memory of 1116	3996	a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe	83
PID 3996 wrote to memory of 1116	3996	a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe	83
PID 1116 wrote to memory of 3532	1116	winver.exe	56
PID 1116 wrote to memory of 2596	1116	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2596

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3532
- C:\Users\Admin\AppData\Local\Temp\a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe
  "C:\Users\Admin\AppData\Local\Temp\a9b286948672f6165188c6c1888faf98ad5e5e2ec4a34fb90d67e9daaec57506.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3996
- - 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:1116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 352
      4⤵
      Program crash
      PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1116 -ip 1116
1⤵
PID:440

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/1116-6-0x0000000077582000-0x0000000077583000-memory.dmp

Filesize
4KB

Download
memory/1116-15-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download
memory/1116-8-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/1116-5-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download
memory/2596-14-0x00000000000A0000-0x00000000000A6000-memory.dmp

Filesize
24KB

Download
memory/3532-2-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download
memory/3532-7-0x00007FFD0B3ED000-0x00007FFD0B3EE000-memory.dmp

Filesize
4KB

Download
memory/3532-3-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download
memory/3996-4-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/3996-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3996-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3996-10-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/3996-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download