tinba | b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8

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
10/10/2024, 12:08

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General

Target

b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe
Size

225KB
MD5

6af204179941f0a75df5ae781dcb38c0
SHA1

bc98e42e976e7932099b4990cac3a7704c30ebf0
SHA256

b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8
SHA512

daac25297f847cff3a0b0e6640e917d29c3851edc440fb21cd37fb2f658f50baf2fc05e40990d38faec3eebd2ac9558d00d45d11a677e8bac4e04586dd856c35
SSDEEP

6144:JA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:JATuTAnKGwUAW3ycQqgf

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

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\D4B6508C = "C:\\Users\\Admin\\AppData\\Roaming\\D4B6508C\\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	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe
2716	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2716	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2716	3004	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	31
PID 3004 wrote to memory of 2716	3004	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	31
PID 3004 wrote to memory of 2716	3004	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	31
PID 3004 wrote to memory of 2716	3004	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	31
PID 3004 wrote to memory of 2716	3004	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	31
PID 2716 wrote to memory of 1172	2716	winver.exe	21
PID 2716 wrote to memory of 1052	2716	winver.exe	18
PID 2716 wrote to memory of 1128	2716	winver.exe	20
PID 2716 wrote to memory of 1172	2716	winver.exe	21
PID 2716 wrote to memory of 3004	2716	winver.exe	29

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

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1128

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1172
- C:\Users\Admin\AppData\Local\Temp\b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe
  "C:\Users\Admin\AppData\Local\Temp\b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3004
- - 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:2716

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/1052-9-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1052-23-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1128-12-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1128-25-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-1-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1172-15-0x0000000002A30000-0x0000000002A36000-memory.dmp

Filesize
24KB

Download
memory/1172-6-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1172-3-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1172-24-0x0000000002A30000-0x0000000002A36000-memory.dmp

Filesize
24KB

Download
memory/2716-20-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2716-4-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2716-27-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3004-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download