tinba | 33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8

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
25-01-2025 08:13

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General

Target

33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe
Size

89KB
MD5

9a2453d636b02c5d149ab3104904b0c7
SHA1

ddf9d6d873bdcc94b0923b2f04aa228b67206d6b
SHA256

33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8
SHA512

c07ea5183ad6aa14365d824e42b4b4338796272d0830a8c7c535cdd7afc20cbab94d54d6e269bbc607fc83631c4d624a9212098b223f505da8f0e424af33b264
SSDEEP

1536:f1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7u:d+4MJIkLZJNAQ9Jo9u

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\D27441A2 = "C:\\Users\\Admin\\AppData\\Roaming\\D27441A2\\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/2632-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4780	4824	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	33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4824	winver.exe
4824	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4824	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 4824	2632	33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe	83
PID 2632 wrote to memory of 4824	2632	33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe	83
PID 2632 wrote to memory of 4824	2632	33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe	83
PID 2632 wrote to memory of 4824	2632	33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe	83
PID 4824 wrote to memory of 3440	4824	winver.exe	56
PID 4824 wrote to memory of 680	4824	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:680

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe
  "C:\Users\Admin\AppData\Local\Temp\33c3d0c4847980dc79536ef491e596c6365d75d736bf8aabb814f995f6deb6f8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - 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:4824
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 352
      4⤵
      Program crash
      PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4824 -ip 4824
1⤵
PID:4896

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/680-13-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2632-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2632-1-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/2632-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2632-4-0x0000000002180000-0x0000000002B80000-memory.dmp

Filesize
10.0MB

Download
memory/2632-9-0x0000000002180000-0x0000000002B80000-memory.dmp

Filesize
10.0MB

Download
memory/3440-3-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FFDFCE2D000-0x00007FFDFCE2E000-memory.dmp

Filesize
4KB

Download
memory/3440-2-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

Filesize
24KB

Download
memory/4824-7-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

Filesize
2.0MB

Download
memory/4824-5-0x00000000775E2000-0x00000000775E3000-memory.dmp

Filesize
4KB

Download
memory/4824-11-0x00000000009B0000-0x00000000009B6000-memory.dmp

Filesize
24KB

Download
memory/4824-14-0x00000000009B0000-0x00000000009B6000-memory.dmp

Filesize
24KB

Download