tinba | 7de6d73a488d4f752b3c97c09267b013b465fd271838c9fcc51cefdaf00003fa

Analysis

max time kernel
118s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/09/2024, 22:19

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General

Target

f5cbc3bc10982f37113ad3668b1636f0N.exe
Size

110KB
MD5

f5cbc3bc10982f37113ad3668b1636f0
SHA1

9904644e65d8490b42c9b97e84b8ae044be74293
SHA256

7de6d73a488d4f752b3c97c09267b013b465fd271838c9fcc51cefdaf00003fa
SHA512

ea8d56cfba10e1849b910bc50175714e6b840f90517e876a24411e9627ff01760cff40402a7d3cc5d73c433deca7c6b0a693b1883bcf2d9e5285fb273bc9519f
SSDEEP

1536:niLOvRmmQegJgBbmAQ256/ZrwWnwqjhurmKFcxL8JQ28SGd:niyvRmeLs/ZrwWJjAqGcRJ2xS

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1804-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C842F6F8 = "C:\\Users\\Admin\\AppData\\Roaming\\C842F6F8\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4484	1172	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5cbc3bc10982f37113ad3668b1636f0N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1172	winver.exe
1172	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1172	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3448	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1172	1804	f5cbc3bc10982f37113ad3668b1636f0N.exe	85
PID 1804 wrote to memory of 1172	1804	f5cbc3bc10982f37113ad3668b1636f0N.exe	85
PID 1804 wrote to memory of 1172	1804	f5cbc3bc10982f37113ad3668b1636f0N.exe	85
PID 1804 wrote to memory of 1172	1804	f5cbc3bc10982f37113ad3668b1636f0N.exe	85
PID 1172 wrote to memory of 3448	1172	winver.exe	56
PID 1172 wrote to memory of 3060	1172	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3060

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3448
- C:\Users\Admin\AppData\Local\Temp\f5cbc3bc10982f37113ad3668b1636f0N.exe
  "C:\Users\Admin\AppData\Local\Temp\f5cbc3bc10982f37113ad3668b1636f0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1804
- - 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:1172
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1172 -s 352
      4⤵
      Program crash
      PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1172 -ip 1172
1⤵
PID:4704

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/1172-5-0x0000000077412000-0x0000000077413000-memory.dmp

Filesize
4KB

Download
memory/1172-16-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/1172-13-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/1172-7-0x00007FFB63070000-0x00007FFB63265000-memory.dmp

Filesize
2.0MB

Download
memory/1804-10-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1804-4-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/1804-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1804-11-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/1804-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/3060-15-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3448-6-0x00007FFB6310D000-0x00007FFB6310E000-memory.dmp

Filesize
4KB

Download
memory/3448-2-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/3448-8-0x00007FFB632A0000-0x00007FFB632A1000-memory.dmp

Filesize
4KB

Download
memory/3448-3-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download