tinba | 4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2

Analysis

max time kernel
112s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 20:11

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General

Target

4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
Size

34KB
MD5

6bd6d168d6ec32aab21dc75cbafcbb58
SHA1

ae4b77a65f2b563d2dd72fa6763d412f3d78a867
SHA256

4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2
SHA512

aeb736aea0246a81a6d598a258b51ab99de4bbb42fd14d7334b088fc31f91990ae3ec9af35a7f74975084623764fc6e37cd7bd320467022be52dd2356a7a12f7
SSDEEP

768:xp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:xpYoX58z1uirL98xMWnT0OQ9Ji

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1C9434CB = "C:\\Users\\Admin\\AppData\\Roaming\\1C9434CB\\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/2840-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3124	2292	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	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2292	winver.exe
2292	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2292	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2292	2840	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	83
PID 2840 wrote to memory of 2292	2840	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	83
PID 2840 wrote to memory of 2292	2840	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	83
PID 2840 wrote to memory of 2292	2840	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	83
PID 2292 wrote to memory of 3504	2292	winver.exe	56
PID 2292 wrote to memory of 2864	2292	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2864

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3504
- C:\Users\Admin\AppData\Local\Temp\4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
  "C:\Users\Admin\AppData\Local\Temp\4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2840
- - 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:2292
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2292 -s 352
      4⤵
      Program crash
      PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2292 -ip 2292
1⤵
PID:4192

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/2292-5-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/2292-7-0x00007FFB70190000-0x00007FFB70385000-memory.dmp

Filesize
2.0MB

Download
memory/2292-15-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/2840-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2840-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2840-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-10-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2864-14-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/3504-3-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Filesize
24KB

Download
memory/3504-6-0x00007FFB7022D000-0x00007FFB7022E000-memory.dmp

Filesize
4KB

Download