tinba | bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9f

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 22:48

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General

Target

bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe
Size

45KB
MD5

71e095555ba3a5d57e8d48b6282759a0
SHA1

131d3b607417420e4f30d4b76c02f8913b0b93a3
SHA256

bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9f
SHA512

099e64d4fa6deb0640cb0b0d49dd5d1b6e7fa5e62c33352f5d45c7f440154580f537d51af3443bfeee2ca611d1011cb7d3e5d7638bb0f647b9a4a7e64a8dccd8
SSDEEP

768:zhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2H:lsWE9N5dFu53dsniQaB/xZ14n7zIF+qT

Score

10^/10

tinba banker discovery persistence trojan upx

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\DEBB0061 = "C:\\Users\\Admin\\AppData\\Roaming\\DEBB0061\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1732-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe
2404	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2404	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2404	1732	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe	32
PID 1732 wrote to memory of 2404	1732	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe	32
PID 1732 wrote to memory of 2404	1732	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe	32
PID 1732 wrote to memory of 2404	1732	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe	32
PID 1732 wrote to memory of 2404	1732	bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe	32
PID 2404 wrote to memory of 1252	2404	winver.exe	21
PID 2404 wrote to memory of 1104	2404	winver.exe	19
PID 2404 wrote to memory of 1172	2404	winver.exe	20
PID 2404 wrote to memory of 1252	2404	winver.exe	21
PID 2404 wrote to memory of 1656	2404	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1104

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1252
- C:\Users\Admin\AppData\Local\Temp\bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe
  "C:\Users\Admin\AppData\Local\Temp\bc2df72fefdf6771900b86bc4366e35b367c638937162d7f7e976b49a2fd8f9fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1732
- - 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:2404

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1656

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/1104-27-0x00000000778A1000-0x00000000778A2000-memory.dmp

Filesize
4KB

Download
memory/1104-26-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1172-28-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1172-20-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1252-2-0x0000000002EB0000-0x0000000002EB6000-memory.dmp

Filesize
24KB

Download
memory/1252-4-0x0000000002EB0000-0x0000000002EB6000-memory.dmp

Filesize
24KB

Download
memory/1252-10-0x00000000778A1000-0x00000000778A2000-memory.dmp

Filesize
4KB

Download
memory/1252-22-0x0000000002170000-0x0000000002176000-memory.dmp

Filesize
24KB

Download
memory/1252-25-0x0000000002170000-0x0000000002176000-memory.dmp

Filesize
24KB

Download
memory/1252-3-0x0000000002EB0000-0x0000000002EB6000-memory.dmp

Filesize
24KB

Download
memory/1656-30-0x00000000778A1000-0x00000000778A2000-memory.dmp

Filesize
4KB

Download
memory/1656-29-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1656-24-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1732-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1732-13-0x0000000001E70000-0x0000000002870000-memory.dmp

Filesize
10.0MB

Download
memory/1732-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1732-5-0x0000000001E70000-0x0000000002870000-memory.dmp

Filesize
10.0MB

Download
memory/1732-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2404-6-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2404-7-0x0000000077A50000-0x0000000077A51000-memory.dmp

Filesize
4KB

Download
memory/2404-8-0x0000000077A4F000-0x0000000077A50000-memory.dmp

Filesize
4KB

Download
memory/2404-9-0x0000000077A4F000-0x0000000077A51000-memory.dmp

Filesize
8KB

Download
memory/2404-11-0x0000000077850000-0x00000000779F9000-memory.dmp

Filesize
1.7MB

Download
memory/2404-31-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download