tinba | a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715a

Analysis

max time kernel
118s
max time network
115s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/09/2024, 22:15

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General

Target

a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
Size

45KB
MD5

4fb46585641257f17fd53dafc3f14ec0
SHA1

2dd93b296d672b1692bc44af0bdaa661c7e597e3
SHA256

a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715a
SHA512

796a6d867b8ac57b85815cc509e27c64271f8dddc6e5d366afc3a7da7c752f6dbcb369909d32ca510faa48bbdd2154230c5c9e4f0229420992595c2bf7d9c0b3
SSDEEP

768:IhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:0sWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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

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\B2CC9DCC = "C:\\Users\\Admin\\AppData\\Roaming\\B2CC9DCC\\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/2236-0-0x0000000000400000-0x000000000041D000-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	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe
2528	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2528	winver.exe
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2528	2236	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	31
PID 2236 wrote to memory of 2528	2236	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	31
PID 2236 wrote to memory of 2528	2236	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	31
PID 2236 wrote to memory of 2528	2236	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	31
PID 2236 wrote to memory of 2528	2236	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	31
PID 2528 wrote to memory of 1236	2528	winver.exe	21
PID 2528 wrote to memory of 1116	2528	winver.exe	19
PID 2528 wrote to memory of 1172	2528	winver.exe	20
PID 2528 wrote to memory of 1236	2528	winver.exe	21
PID 2528 wrote to memory of 500	2528	winver.exe	23

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

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1236
- C:\Users\Admin\AppData\Local\Temp\a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
  "C:\Users\Admin\AppData\Local\Temp\a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2236
- - 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:2528

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:500

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/500-29-0x0000000001EF0000-0x0000000001EF6000-memory.dmp

Filesize
24KB

Download
memory/500-34-0x0000000077841000-0x0000000077842000-memory.dmp

Filesize
4KB

Download
memory/500-33-0x0000000001EF0000-0x0000000001EF6000-memory.dmp

Filesize
24KB

Download
memory/1116-25-0x0000000077841000-0x0000000077842000-memory.dmp

Filesize
4KB

Download
memory/1116-24-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1172-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-30-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-26-0x0000000077841000-0x0000000077842000-memory.dmp

Filesize
4KB

Download
memory/1236-31-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1236-2-0x0000000002A10000-0x0000000002A16000-memory.dmp

Filesize
24KB

Download
memory/1236-3-0x0000000002A10000-0x0000000002A16000-memory.dmp

Filesize
24KB

Download
memory/1236-23-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1236-10-0x0000000077841000-0x0000000077842000-memory.dmp

Filesize
4KB

Download
memory/1236-4-0x0000000002A10000-0x0000000002A16000-memory.dmp

Filesize
24KB

Download
memory/2236-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2236-13-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/2236-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2236-5-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/2236-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2528-7-0x00000000779F0000-0x00000000779F1000-memory.dmp

Filesize
4KB

Download
memory/2528-8-0x00000000779EF000-0x00000000779F0000-memory.dmp

Filesize
4KB

Download
memory/2528-9-0x00000000779EF000-0x00000000779F1000-memory.dmp

Filesize
8KB

Download
memory/2528-11-0x00000000777F0000-0x0000000077999000-memory.dmp

Filesize
1.7MB

Download
memory/2528-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2528-32-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download