tinba | 91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 01:46

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General

Target

91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe
Size

45KB
MD5

72a6d6a7121ac1dda95b14b8974f5842
SHA1

66bbe13758727791b8a219cdc6b7e2a1ea5b572d
SHA256

91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986
SHA512

efb5ecb29fc8dfec4055d916864f794e7be31b15e5f7a147b9de2d07a86ec1002340036467bfd200002b71eb8a6d8e947a1de04094bb8330e6f92d5ff70b416c
SSDEEP

768:ghP0kDE9N5dCA8J7VHXdrIniQaBTT+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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D82653D8 = "C:\\Users\\Admin\\AppData\\Roaming\\D82653D8\\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/4152-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4404	1408	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	91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1408	winver.exe
1408	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1408	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 1408	4152	91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe	84
PID 4152 wrote to memory of 1408	4152	91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe	84
PID 4152 wrote to memory of 1408	4152	91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe	84
PID 4152 wrote to memory of 1408	4152	91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe	84
PID 1408 wrote to memory of 3420	1408	winver.exe	56
PID 1408 wrote to memory of 2836	1408	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2836

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe
  "C:\Users\Admin\AppData\Local\Temp\91c8426d6095c77d7f0950598820f1392c270d1327f393842a0d687d74c25986.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4152
- - 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:1408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 352
      4⤵
      Program crash
      PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1408 -ip 1408
1⤵
PID:1716

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/1408-5-0x0000000077E72000-0x0000000077E73000-memory.dmp

Filesize
4KB

Download
memory/1408-14-0x0000000002D90000-0x0000000002D96000-memory.dmp

Filesize
24KB

Download
memory/1408-11-0x0000000002D90000-0x0000000002D96000-memory.dmp

Filesize
24KB

Download
memory/1408-7-0x00007FFBCB870000-0x00007FFBCBA65000-memory.dmp

Filesize
2.0MB

Download
memory/2836-13-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/3420-2-0x0000000002690000-0x0000000002696000-memory.dmp

Filesize
24KB

Download
memory/3420-6-0x00007FFBCB90D000-0x00007FFBCB90E000-memory.dmp

Filesize
4KB

Download
memory/3420-3-0x0000000002690000-0x0000000002696000-memory.dmp

Filesize
24KB

Download
memory/4152-4-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/4152-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4152-9-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/4152-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4152-1-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download