tinba | 31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31

Analysis

max time kernel
110s
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
16-01-2025 18:10

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General

Target

31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe
Size

45KB
MD5

69679360e804f8dd888ce54faf9d2707
SHA1

0d3514b974f13a6fb37ea4cccaea720fac0812e2
SHA256

31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31
SHA512

b2bcdf5ac46894c76d00062fb0028fdad295a583e16573a756fd43648ca78ea70e805dc5b5f95c2a1dfa7e8d35be7b825a9341c1c78e050bf102732516f20119
SSDEEP

768:ghP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2H:csWE9N5dFu53dsniQaB/xZ14n7zIF+qT

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DF935002 = "C:\\Users\\Admin\\AppData\\Roaming\\DF935002\\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/3176-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4940	4800	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	31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4800	winver.exe
4800	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4800	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 4800	3176	31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe	84
PID 3176 wrote to memory of 4800	3176	31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe	84
PID 3176 wrote to memory of 4800	3176	31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe	84
PID 3176 wrote to memory of 4800	3176	31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe	84
PID 4800 wrote to memory of 3536	4800	winver.exe	56
PID 4800 wrote to memory of 2656	4800	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2656

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3536
- C:\Users\Admin\AppData\Local\Temp\31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe
  "C:\Users\Admin\AppData\Local\Temp\31c330d754150f69c6ec52492dad8c864f35263bd36d65d1cd98f019606a0b31.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3176
- - 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:4800
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 352
      4⤵
      Program crash
      PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4800 -ip 4800
1⤵
PID:4052

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/2656-13-0x0000000000C30000-0x0000000000C36000-memory.dmp

Filesize
24KB

Download
memory/3176-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3176-1-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download
memory/3176-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3176-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3176-9-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3536-2-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/3536-6-0x00007FFB7C7ED000-0x00007FFB7C7EE000-memory.dmp

Filesize
4KB

Download
memory/3536-3-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/4800-7-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp

Filesize
2.0MB

Download
memory/4800-5-0x0000000077C72000-0x0000000077C73000-memory.dmp

Filesize
4KB

Download
memory/4800-11-0x0000000001190000-0x0000000001196000-memory.dmp

Filesize
24KB

Download
memory/4800-14-0x0000000001190000-0x0000000001196000-memory.dmp

Filesize
24KB

Download