tinba | 31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 13:21

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General

Target

31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
Size

225KB
MD5

49d77b0e16d4889c9869d18a4694d2e0
SHA1

71a1b7b0a8fa51924d468a2af7df02e0fa315705
SHA256

31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad
SHA512

7e74e532d316cd21539dfa57cd31c894c612a4f43d36cef6cfb7eb2f1f0104cf0c3e3b6cdbeae8582920f04a013104119bfbc32bb52641aecce1971dcef3b495
SSDEEP

6144:dA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:dATuTAnKGwUAW3ycQqg3

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\4EF398DD = "C:\\Users\\Admin\\AppData\\Roaming\\4EF398DD\\bin.exe"	winver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe
2620	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2620	winver.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2620	1968	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	31
PID 1968 wrote to memory of 2620	1968	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	31
PID 1968 wrote to memory of 2620	1968	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	31
PID 1968 wrote to memory of 2620	1968	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	31
PID 1968 wrote to memory of 2620	1968	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	31
PID 2620 wrote to memory of 1108	2620	winver.exe	20
PID 2620 wrote to memory of 1036	2620	winver.exe	17
PID 2620 wrote to memory of 1052	2620	winver.exe	18
PID 2620 wrote to memory of 1108	2620	winver.exe	20
PID 2620 wrote to memory of 1664	2620	winver.exe	25
PID 2620 wrote to memory of 1968	2620	winver.exe	29

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1036

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1052

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1108
- C:\Users\Admin\AppData\Local\Temp\31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
  "C:\Users\Admin\AppData\Local\Temp\31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1968
- - 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:2620

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1664

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 Information Discovery

T1082

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/1036-29-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1036-9-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1052-28-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1052-12-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1108-27-0x0000000002D40000-0x0000000002D46000-memory.dmp

Filesize
24KB

Download
memory/1108-3-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download
memory/1108-1-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download
memory/1108-6-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download
memory/1108-15-0x0000000002D40000-0x0000000002D46000-memory.dmp

Filesize
24KB

Download
memory/1664-18-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1664-26-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1968-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2620-23-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2620-4-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2620-31-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download