tinba | db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849

Analysis

max time kernel
109s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 16:06

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General

Target

db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe
Size

45KB
MD5

7d76fe653a5ef1c3d838c9c0b9b2f0d0
SHA1

827f42ba952c913dda8976bdb33e6e02d84ad76f
SHA256

db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849
SHA512

c5e90001f2b5c4318fe94736c456984d49001e084aceb7bf0cf76dbeedb2043833bf90b4ddf381756c91f99098b0e8c198a397f28ab1c6c5bfae2ccda2ebea86
SSDEEP

768:RhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2X:rsWE9N5dFu53dsniQaB/xZ14n7zIF+qD

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\90C147E7 = "C:\\Users\\Admin\\AppData\\Roaming\\90C147E7\\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/432-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4872	2324	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	db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2324	winver.exe
2324	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2324	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 2324	432	db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe	83
PID 432 wrote to memory of 2324	432	db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe	83
PID 432 wrote to memory of 2324	432	db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe	83
PID 432 wrote to memory of 2324	432	db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe	83
PID 2324 wrote to memory of 3540	2324	winver.exe	56
PID 2324 wrote to memory of 2792	2324	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2792

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3540
- C:\Users\Admin\AppData\Local\Temp\db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe
  "C:\Users\Admin\AppData\Local\Temp\db9c42df7caf2c04a9d3f1f7173785bb04e80a018f6189b629c81e2c6d76f849N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:432
- - 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:2324
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 352
      4⤵
      Program crash
      PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2324 -ip 2324
1⤵
PID:2356

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/432-9-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/432-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/432-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/432-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/432-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2324-5-0x0000000077B02000-0x0000000077B03000-memory.dmp

Filesize
4KB

Download
memory/2324-7-0x00007FFAC0B70000-0x00007FFAC0D65000-memory.dmp

Filesize
2.0MB

Download
memory/2324-11-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/2324-14-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/2792-13-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3540-3-0x00000000012C0000-0x00000000012C6000-memory.dmp

Filesize
24KB

Download
memory/3540-2-0x00000000012C0000-0x00000000012C6000-memory.dmp

Filesize
24KB

Download
memory/3540-6-0x00007FFAC0C0D000-0x00007FFAC0C0E000-memory.dmp

Filesize
4KB

Download