tinba | ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5

Analysis

max time kernel
138s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 04:51

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General

Target
ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe
Size 110KB
Sample240929-fg415atbrg
SHA256 ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5
MD5 0b71edc43344da9efffa5b78e27b13bb
SHA1 60ef7f7f3841ce004df34a0019b598930c9b01e0
SHA512 092812e9f090c62032acf08d94bf3ef630c986ce9926dbd5d4d02602c77194d57e9692973d3c5f33261fa9fdb139913c4fcffabd2f17f12d8b0efb19f3c61d73
SSDEEP 1536:XiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:XiyvRmDLs/ZrwWJjAqGcRJ2hg
MD5 SHA1 SHA512 SSDEEP

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

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E165FEE0 = "C:\\Users\\Admin\\AppData\\Roaming\\E165FEE0\\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/4480-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1112	3116	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	ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3116	winver.exe
3116	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3116	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 3116	4480	ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe	83
PID 4480 wrote to memory of 3116	4480	ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe	83
PID 4480 wrote to memory of 3116	4480	ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe	83
PID 4480 wrote to memory of 3116	4480	ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe	83
PID 3116 wrote to memory of 3400	3116	winver.exe	56
PID 3116 wrote to memory of 2984	3116	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2984

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3400
- C:\Users\Admin\AppData\Local\Temp\ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe
  "C:\Users\Admin\AppData\Local\Temp\ff40d21acab25f01059e8e686553cc71055aa2b44603cdb33ff6f38e566f2bb5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4480
- - 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:3116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 356
      4⤵
      Program crash
      PID:1112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3116 -ip 3116
1⤵
PID:1744

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

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Downloads

memory/2984-13-0x0000000000150000-0x0000000000156000-memory.dmp

Download

memory/3116-5-0x00000000773F2000-0x00000000773F3000-memory.dmp

Download

memory/3116-14-0x0000000002CE0000-0x0000000002CE6000-memory.dmp

Download

memory/3116-11-0x0000000002CE0000-0x0000000002CE6000-memory.dmp

Download

memory/3116-7-0x00007FF9A85D0000-0x00007FF9A87C5000-memory.dmp

Download

memory/3400-2-0x00000000029A0000-0x00000000029A6000-memory.dmp

Download

memory/3400-6-0x00007FF9A866D000-0x00007FF9A866E000-memory.dmp

Download

memory/3400-3-0x00000000029A0000-0x00000000029A6000-memory.dmp

Download

memory/4480-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/4480-8-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/4480-9-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/4480-0-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/4480-1-0x0000000002160000-0x0000000002161000-memory.dmp

Download