tinba | f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33

Analysis

max time kernel
118s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 20:41

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General

Target

f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe
Size

45KB
MD5

c49b2c9fc87c42a0a6fe616198266b60
SHA1

5ac2b9c82a601ab870f3a34d53cc7591f7fa0b3f
SHA256

f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33
SHA512

5bd5342243096ea208d3af2c6cf2cf99bdc14db840cec4984cbbf59a58fe2ac208ebf2e8f85089e6653dedddeec0e06bd979d0efe190d13574f710557ff92c52
SSDEEP

768:6hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:2sWE9N5dFu53dsniQaB/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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4DD36B19 = "C:\\Users\\Admin\\AppData\\Roaming\\4DD36B19\\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/3780-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2900	4696	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	f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4696	winver.exe
4696	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4696	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3780 wrote to memory of 4696	3780	f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe	84
PID 3780 wrote to memory of 4696	3780	f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe	84
PID 3780 wrote to memory of 4696	3780	f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe	84
PID 3780 wrote to memory of 4696	3780	f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe	84
PID 4696 wrote to memory of 3568	4696	winver.exe	56
PID 4696 wrote to memory of 2520	4696	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2520

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3568
- C:\Users\Admin\AppData\Local\Temp\f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe
  "C:\Users\Admin\AppData\Local\Temp\f3d5e09e15dec8106776824349457e8a372e38a0a66dce1a0d7cee1d52a8df33N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3780
- - 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:4696
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 352
      4⤵
      Program crash
      PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4696 -ip 4696
1⤵
PID:4968

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/2520-13-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3568-6-0x00007FFFB712D000-0x00007FFFB712E000-memory.dmp

Filesize
4KB

Download
memory/3568-3-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3568-2-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3780-4-0x0000000002400000-0x0000000002E00000-memory.dmp

Filesize
10.0MB

Download
memory/3780-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3780-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3780-9-0x0000000002400000-0x0000000002E00000-memory.dmp

Filesize
10.0MB

Download
memory/3780-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/4696-5-0x0000000077472000-0x0000000077473000-memory.dmp

Filesize
4KB

Download
memory/4696-7-0x00007FFFB7090000-0x00007FFFB7285000-memory.dmp

Filesize
2.0MB

Download
memory/4696-11-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/4696-14-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download