tinba | 49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049

Analysis

max time kernel
110s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2025 23:32

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General

Target

49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe
Size

45KB
MD5

e5ac534d585e4927dfee419a9d8af880
SHA1

ce14019809a7e30822577bba69272eab20b85d09
SHA256

49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049
SHA512

7bce5c72e466b112ffe4c8e5a28c23563ee6772dbc07f25b32fca4caa20902666edffd8e0e8e2f9c74c3c00cdfb1d1d2d0e193b3fa0b321fc0af0de16010eb17
SSDEEP

768:yhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ21:+sWE9N5dFu53dsniQaB/xZ14n7zIF+qZ

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\71C6C9B2 = "C:\\Users\\Admin\\AppData\\Roaming\\71C6C9B2\\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/3836-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1932	2088	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	49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2088	winver.exe
2088	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2088	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 2088	3836	49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe	83
PID 3836 wrote to memory of 2088	3836	49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe	83
PID 3836 wrote to memory of 2088	3836	49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe	83
PID 3836 wrote to memory of 2088	3836	49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe	83
PID 2088 wrote to memory of 3436	2088	winver.exe	56
PID 2088 wrote to memory of 3016	2088	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3016

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe
  "C:\Users\Admin\AppData\Local\Temp\49616b669ede0d88f952af00531ebec3351414ff965dfeff5b0964b4ac838049N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3836
- - 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:2088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 352
      4⤵
      Program crash
      PID:1932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2088 -ip 2088
1⤵
PID:2780

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/2088-6-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/2088-15-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/2088-5-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/2088-8-0x00007FFB0C970000-0x00007FFB0CB65000-memory.dmp

Filesize
2.0MB

Download
memory/3016-14-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x0000000002860000-0x0000000002866000-memory.dmp

Filesize
24KB

Download
memory/3436-7-0x00007FFB0CA0D000-0x00007FFB0CA0E000-memory.dmp

Filesize
4KB

Download
memory/3436-3-0x0000000002860000-0x0000000002866000-memory.dmp

Filesize
24KB

Download
memory/3836-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3836-4-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3836-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3836-10-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3836-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download