tinba | 4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3

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
22-01-2025 00:30

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General

Target

4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe
Size

225KB
MD5

7f873fef35a7958cd107943cea84b35b
SHA1

b0d93c3b8b0110ff6f1284691f6919e4faaf8e30
SHA256

4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3
SHA512

bbf49a798203923586d9cf3d904b43a0647c6b3875dee1e9a56ad00c8ea3c5fe726fdac82ec25b43ae096562024d5264c2199baf23b0cb222e828e1cbe465644
SSDEEP

6144:AA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:AATuTAnKGwUAW3ycQqgf

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\745F1D98 = "C:\\Users\\Admin\\AppData\\Roaming\\745F1D98\\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	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2420	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2420	2888	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe	31
PID 2888 wrote to memory of 2420	2888	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe	31
PID 2888 wrote to memory of 2420	2888	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe	31
PID 2888 wrote to memory of 2420	2888	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe	31
PID 2888 wrote to memory of 2420	2888	4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe	31
PID 2420 wrote to memory of 1212	2420	winver.exe	21
PID 2420 wrote to memory of 1116	2420	winver.exe	19
PID 2420 wrote to memory of 1168	2420	winver.exe	20
PID 2420 wrote to memory of 1212	2420	winver.exe	21
PID 2420 wrote to memory of 848	2420	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1168

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212
- C:\Users\Admin\AppData\Local\Temp\4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe
  "C:\Users\Admin\AppData\Local\Temp\4d7f91c4d7d20cfb25ea4b6efb98255f3c5224237cdd4c74b4c8321738478ec3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - 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:2420

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:848

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/848-27-0x0000000001D30000-0x0000000001D36000-memory.dmp

Filesize
24KB

Download
memory/848-20-0x0000000001D30000-0x0000000001D36000-memory.dmp

Filesize
24KB

Download
memory/1116-24-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1116-11-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1168-14-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1168-26-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1212-3-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/1212-17-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1212-1-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/1212-6-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/1212-25-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/2420-23-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2420-4-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/2420-29-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2888-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download