tinba | d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb

Analysis

max time kernel
118s
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
17-12-2024 01:03

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General

Target

d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe
Size

34KB
MD5

9e8a9404c633b1d232d4259261798130
SHA1

7e2efb644572c8911b0e53bf64e62fb16f9df591
SHA256

d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb
SHA512

139fd97abc1e3251f9bb612123350afb08824c72fb9b90b88f06f6420dd3a71dba1311bef3d1a3122a7126edf930f9b33a36f8bcd4c805e13cee043dc2b1b698
SSDEEP

768:Fp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9JC:FpYoX58z1uirL98xMWnT0OQ9JC

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\528C6FBC = "C:\\Users\\Admin\\AppData\\Roaming\\528C6FBC\\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/3800-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1740	2712	WerFault.exe	82

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	d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2712	winver.exe
2712	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2712	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3800 wrote to memory of 2712	3800	d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe	82
PID 3800 wrote to memory of 2712	3800	d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe	82
PID 3800 wrote to memory of 2712	3800	d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe	82
PID 3800 wrote to memory of 2712	3800	d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe	82
PID 2712 wrote to memory of 3416	2712	winver.exe	56
PID 2712 wrote to memory of 2700	2712	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2700

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3416
- C:\Users\Admin\AppData\Local\Temp\d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe
  "C:\Users\Admin\AppData\Local\Temp\d81adc6ca442b7ffca27a036e5617dae5fa3cab95e46178e8528c49a26fb22eb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3800
- - 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:2712
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 352
      4⤵
      Program crash
      PID:1740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2712 -ip 2712
1⤵
PID:2212

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/2700-14-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Filesize
24KB

Download
memory/2712-3-0x0000000001400000-0x0000000001406000-memory.dmp

Filesize
24KB

Download
memory/2712-6-0x0000000077AC2000-0x0000000077AC3000-memory.dmp

Filesize
4KB

Download
memory/2712-12-0x0000000001400000-0x0000000001406000-memory.dmp

Filesize
24KB

Download
memory/2712-15-0x0000000001400000-0x0000000001406000-memory.dmp

Filesize
24KB

Download
memory/3416-8-0x00007FFC94CCD000-0x00007FFC94CCE000-memory.dmp

Filesize
4KB

Download
memory/3416-7-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3800-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3800-1-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/3800-2-0x00000000020F0000-0x0000000002AF0000-memory.dmp

Filesize
10.0MB

Download
memory/3800-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3800-10-0x00000000020F0000-0x0000000002AF0000-memory.dmp

Filesize
10.0MB

Download