tinba | 55113d18c872ce9d9ea3d0076cbd54ddf111a40ed61d1bcf63c94ff256ffd6fa

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 15:21

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General

Target
8790ca66f51b006d7326d7bf742f2e50N.exe
Size 225KB
Sample240818-srlnrazdlb
SHA256 55113d18c872ce9d9ea3d0076cbd54ddf111a40ed61d1bcf63c94ff256ffd6fa
MD5 8790ca66f51b006d7326d7bf742f2e50
SHA1 4848142c0019bee264ee6c92de94c66ceace71ec
SHA512 53a02ca057ed74b02049610bf26ec655308c278b0505ba8ba59107b476c8eba567f4c91062e75975263fc74f590a0d78ab6e2c6002a8659ea681e9bf03102026
SSDEEP 6144:FA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:FATuTAnKGwUAW3ycQqgf
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\1A28F626 = "C:\\Users\\Admin\\AppData\\Roaming\\1A28F626\\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	8790ca66f51b006d7326d7bf742f2e50N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe
2912	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2912	winver.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2912	2088	8790ca66f51b006d7326d7bf742f2e50N.exe	31
PID 2088 wrote to memory of 2912	2088	8790ca66f51b006d7326d7bf742f2e50N.exe	31
PID 2088 wrote to memory of 2912	2088	8790ca66f51b006d7326d7bf742f2e50N.exe	31
PID 2088 wrote to memory of 2912	2088	8790ca66f51b006d7326d7bf742f2e50N.exe	31
PID 2088 wrote to memory of 2912	2088	8790ca66f51b006d7326d7bf742f2e50N.exe	31
PID 2912 wrote to memory of 1196	2912	winver.exe	21
PID 2912 wrote to memory of 1080	2912	winver.exe	18
PID 2912 wrote to memory of 1168	2912	winver.exe	20
PID 2912 wrote to memory of 1196	2912	winver.exe	21
PID 2912 wrote to memory of 2036	2912	winver.exe	23
PID 2912 wrote to memory of 2088	2912	winver.exe	29

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1080

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe
  "C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2088
- - 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:2912

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2036

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

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Downloads

memory/1080-9-0x0000000000410000-0x0000000000416000-memory.dmp

Download

memory/1080-28-0x0000000000410000-0x0000000000416000-memory.dmp

Download

memory/1168-30-0x0000000000140000-0x0000000000146000-memory.dmp

Download

memory/1168-12-0x0000000000140000-0x0000000000146000-memory.dmp

Download

memory/1196-1-0x0000000002E20000-0x0000000002E26000-memory.dmp

Download

memory/1196-6-0x0000000002E20000-0x0000000002E26000-memory.dmp

Download

memory/1196-29-0x0000000002E70000-0x0000000002E76000-memory.dmp

Download

memory/1196-15-0x0000000002E70000-0x0000000002E76000-memory.dmp

Download

memory/1196-3-0x0000000002E20000-0x0000000002E26000-memory.dmp

Download

memory/2036-18-0x00000000022E0000-0x00000000022E6000-memory.dmp

Download

memory/2036-31-0x00000000022E0000-0x00000000022E6000-memory.dmp

Download

memory/2088-27-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/2088-21-0x0000000000050000-0x0000000000056000-memory.dmp

Download

memory/2912-4-0x0000000000160000-0x0000000000166000-memory.dmp

Download

memory/2912-33-0x0000000000260000-0x0000000000266000-memory.dmp

Download