tinba | 4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 11:44

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General

Target

4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
Size

88KB
MD5

ed9115f157a22ca83d4189362d453448
SHA1

63f71f7b107fa880e613e425542a9dcc2911c9d7
SHA256

4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3
SHA512

bb6460d017b8daba9aa769838885f3b7df69d4aa5edc64eaf988bbc99588de4896de67e98f5310ac8b2a713fa35cb76f142aed84b95e016ef11d5b592d0ded78
SSDEEP

1536:M5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:M5fvp12UFKcD/6jwqWsNI

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\8F3CC9E7 = "C:\\Users\\Admin\\AppData\\Roaming\\8F3CC9E7\\bin.exe"	winver.exe

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	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2688	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2688	2640	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	31
PID 2640 wrote to memory of 2688	2640	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	31
PID 2640 wrote to memory of 2688	2640	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	31
PID 2640 wrote to memory of 2688	2640	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	31
PID 2640 wrote to memory of 2688	2640	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	31
PID 2688 wrote to memory of 1208	2688	winver.exe	21
PID 2688 wrote to memory of 1120	2688	winver.exe	19
PID 2688 wrote to memory of 1180	2688	winver.exe	20
PID 2688 wrote to memory of 1208	2688	winver.exe	21
PID 2688 wrote to memory of 1288	2688	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1208
- C:\Users\Admin\AppData\Local\Temp\4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
  "C:\Users\Admin\AppData\Local\Temp\4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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:2688

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1288

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/1120-24-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/1120-25-0x00000000777C1000-0x00000000777C2000-memory.dmp

Filesize
4KB

Download
memory/1180-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1180-26-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1208-1-0x00000000024B0000-0x00000000024B6000-memory.dmp

Filesize
24KB

Download
memory/1208-9-0x00000000777C1000-0x00000000777C2000-memory.dmp

Filesize
4KB

Download
memory/1208-2-0x00000000024B0000-0x00000000024B6000-memory.dmp

Filesize
24KB

Download
memory/1208-27-0x0000000002460000-0x0000000002466000-memory.dmp

Filesize
24KB

Download
memory/1208-3-0x00000000024B0000-0x00000000024B6000-memory.dmp

Filesize
24KB

Download
memory/1208-21-0x0000000002460000-0x0000000002466000-memory.dmp

Filesize
24KB

Download
memory/1288-29-0x00000000777C1000-0x00000000777C2000-memory.dmp

Filesize
4KB

Download
memory/1288-28-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/1288-23-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2640-4-0x0000000001CA0000-0x00000000026A0000-memory.dmp

Filesize
10.0MB

Download
memory/2640-12-0x0000000001CA0000-0x00000000026A0000-memory.dmp

Filesize
10.0MB

Download
memory/2640-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2688-10-0x0000000077770000-0x0000000077919000-memory.dmp

Filesize
1.7MB

Download
memory/2688-5-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2688-6-0x0000000077970000-0x0000000077971000-memory.dmp

Filesize
4KB

Download
memory/2688-7-0x000000007796F000-0x0000000077970000-memory.dmp

Filesize
4KB

Download
memory/2688-8-0x000000007796F000-0x0000000077971000-memory.dmp

Filesize
8KB

Download
memory/2688-30-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download