tinba | cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c

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
27/01/2025, 00:35

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General

Target

cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe
Size

45KB
MD5

0d91cd68bedd708156324ebc533a44fa
SHA1

5333170d8db117507f8cdd818da0d3faea51fc7f
SHA256

cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c
SHA512

962ffced98a33f203e4a172da7ff5d2a7869dd90573270efec9e062251c2aefddd9d64930d66feac0f19508001bc065645f2a06e36dfca66dde6a4be2d4015cb
SSDEEP

768:hhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2t:bsWE9N5dFu53dsniQaB/xZ14n7zIF+qR

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8A155308 = "C:\\Users\\Admin\\AppData\\Roaming\\8A155308\\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/4196-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4728	3172	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	cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3172	winver.exe
3172	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3172	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 3172	4196	cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe	84
PID 4196 wrote to memory of 3172	4196	cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe	84
PID 4196 wrote to memory of 3172	4196	cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe	84
PID 4196 wrote to memory of 3172	4196	cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe	84
PID 3172 wrote to memory of 3528	3172	winver.exe	56
PID 3172 wrote to memory of 3108	3172	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3108

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3528
- C:\Users\Admin\AppData\Local\Temp\cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe
  "C:\Users\Admin\AppData\Local\Temp\cb935c81b6630d28b778721e33d31aea4ab466c4b04108089fa3bede0c3ed80c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4196
- - 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:3172
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 352
      4⤵
      Program crash
      PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3172 -ip 3172
1⤵
PID:4676

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/3108-13-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3172-11-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3172-14-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3172-5-0x0000000077E12000-0x0000000077E13000-memory.dmp

Filesize
4KB

Download
memory/3172-7-0x00007FFB43BD0000-0x00007FFB43DC5000-memory.dmp

Filesize
2.0MB

Download
memory/3528-3-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3528-2-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3528-6-0x00007FFB43C6D000-0x00007FFB43C6E000-memory.dmp

Filesize
4KB

Download
memory/4196-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/4196-9-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/4196-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4196-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4196-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download