tinba | eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018

Analysis

max time kernel
146s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 05:57

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General

Target
eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe
Size 45KB
Sample241017-gnk29svend
SHA256 eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018
MD5 958d53237aead0f97e13751a2db27a60
SHA1 4fe285436c4f6c17162c19ea3537649cd8857ecf
SHA512 62155e83a60f8207080978f577a3a14684ebc6642a8d4839a11bd082155ee2439c2d20b39d6e8ad5d8215b98421e50d067e278051c772764dd1e2aa580db1df5
SSDEEP 768:0hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:4sWE9N5dFu53dsniQaB/xZ14n7zIF+qr
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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1F93ADA5 = "C:\\Users\\Admin\\AppData\\Roaming\\1F93ADA5\\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/2888-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2872	684	WerFault.exe	85

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	eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
684	winver.exe
684	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3488	Explorer.EXE
Token: SeCreatePagefilePrivilege	3488	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
684	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3488	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 684	2888	eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe	85
PID 2888 wrote to memory of 684	2888	eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe	85
PID 2888 wrote to memory of 684	2888	eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe	85
PID 2888 wrote to memory of 684	2888	eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe	85
PID 684 wrote to memory of 3488	684	winver.exe	56
PID 684 wrote to memory of 2696	684	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2696

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3488
- C:\Users\Admin\AppData\Local\Temp\eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe
  "C:\Users\Admin\AppData\Local\Temp\eab8d667974acd55ae06c7720a5545adc196360394c017f48e162e2a4c8f9018N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - 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:684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 352
      4⤵
      Program crash
      PID:2872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 684 -ip 684
1⤵
PID:1684

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/684-13-0x0000000002260000-0x0000000002266000-memory.dmp

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memory/684-5-0x0000000077D72000-0x0000000077D73000-memory.dmp

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memory/684-16-0x0000000002260000-0x0000000002266000-memory.dmp

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memory/684-7-0x00007FFFE04D0000-0x00007FFFE06C5000-memory.dmp

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memory/2696-18-0x00007FFFE06F0000-0x00007FFFE06F1000-memory.dmp

Download

memory/2696-15-0x0000000000710000-0x0000000000716000-memory.dmp

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memory/2888-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

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memory/2888-0-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/2888-4-0x00000000022F0000-0x0000000002CF0000-memory.dmp

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memory/2888-10-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/2888-11-0x00000000022F0000-0x0000000002CF0000-memory.dmp

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memory/3488-2-0x0000000000B10000-0x0000000000B16000-memory.dmp

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memory/3488-8-0x00007FFFE0700000-0x00007FFFE0701000-memory.dmp

Download

memory/3488-6-0x00007FFFE056D000-0x00007FFFE056E000-memory.dmp

Download

memory/3488-3-0x0000000000B10000-0x0000000000B16000-memory.dmp

Download