tinba | acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881f

Analysis

max time kernel
105s
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
02-12-2024 18:17

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General

Target

acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe
Size

34KB
MD5

1d2d3fc8d2bc18d5d2c3fbc0c55653a0
SHA1

0ff31436cf93e8487ccd29795ecb1d45cf19356c
SHA256

acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881f
SHA512

ffd2aa4c19d6b7ae08efa838e412d03c701924b19cd999e52ab629ac84ea653218da6ba4970e4f71989fc42d57fa933e520ac0903156fb6436133692f0e8b2a4
SSDEEP

768:Wp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9JS:WpYoX58z1uirL98xMWnT0OQ9JS

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B27B00C3 = "C:\\Users\\Admin\\AppData\\Roaming\\B27B00C3\\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/2224-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2404	456	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	acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
456	winver.exe
456	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
456	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 456	2224	acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe	84
PID 2224 wrote to memory of 456	2224	acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe	84
PID 2224 wrote to memory of 456	2224	acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe	84
PID 2224 wrote to memory of 456	2224	acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe	84
PID 456 wrote to memory of 3424	456	winver.exe	56
PID 456 wrote to memory of 2876	456	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2876

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe
  "C:\Users\Admin\AppData\Local\Temp\acc45a533bdd8874c0bb5674abf38c50e4f1ceda5b0463bedc380d1631f9881fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2224
- - 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:456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 456 -s 352
      4⤵
      Program crash
      PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 456 -ip 456
1⤵
PID:1856

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/456-5-0x0000000077412000-0x0000000077413000-memory.dmp

Filesize
4KB

Download
memory/456-14-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

Filesize
24KB

Download
memory/456-11-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

Filesize
24KB

Download
memory/456-7-0x00007FFC6DD70000-0x00007FFC6DF65000-memory.dmp

Filesize
2.0MB

Download
memory/2224-9-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2224-4-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2224-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2224-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2224-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2876-13-0x0000000000B10000-0x0000000000B16000-memory.dmp

Filesize
24KB

Download
memory/3424-6-0x00007FFC6DE0D000-0x00007FFC6DE0E000-memory.dmp

Filesize
4KB

Download
memory/3424-2-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download
memory/3424-3-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download