tinba | 2c8f85267b5e1db9f38d1b6d8562a313d0e9e8ce8dc1fc502e9a53ff6d1333df

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10/09/2024, 23:05

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General

Target

41be6ed9df42c6e4ed4b86d751462680N.exe
Size

45KB
MD5

41be6ed9df42c6e4ed4b86d751462680
SHA1

eddbdf0f36c1abcac7e684e095beea3b2c5a6280
SHA256

2c8f85267b5e1db9f38d1b6d8562a313d0e9e8ce8dc1fc502e9a53ff6d1333df
SHA512

1bfd8a7ee09a76f5a17b8edfada7b74d159c6eb4dbdc41ef379e7b4f35f7c525d73230355c676934145e5dad212c4f8f588b3662754e2e0b436c6d63825ba4e5
SSDEEP

768:phP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:zsWE9N5dFu53dsniQaB/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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2532-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\7E4F6196 = "C:\\Users\\Admin\\AppData\\Roaming\\7E4F6196\\bin.exe"	winver.exe

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	41be6ed9df42c6e4ed4b86d751462680N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe
1524	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1524	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 1524	2532	41be6ed9df42c6e4ed4b86d751462680N.exe	31
PID 2532 wrote to memory of 1524	2532	41be6ed9df42c6e4ed4b86d751462680N.exe	31
PID 2532 wrote to memory of 1524	2532	41be6ed9df42c6e4ed4b86d751462680N.exe	31
PID 2532 wrote to memory of 1524	2532	41be6ed9df42c6e4ed4b86d751462680N.exe	31
PID 2532 wrote to memory of 1524	2532	41be6ed9df42c6e4ed4b86d751462680N.exe	31
PID 1524 wrote to memory of 1192	1524	winver.exe	21
PID 1524 wrote to memory of 1116	1524	winver.exe	19
PID 1524 wrote to memory of 1168	1524	winver.exe	20
PID 1524 wrote to memory of 1192	1524	winver.exe	21
PID 1524 wrote to memory of 1644	1524	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:1192
- C:\Users\Admin\AppData\Local\Temp\41be6ed9df42c6e4ed4b86d751462680N.exe
  "C:\Users\Admin\AppData\Local\Temp\41be6ed9df42c6e4ed4b86d751462680N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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:1524

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1644

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/1116-33-0x0000000076FC1000-0x0000000076FC2000-memory.dmp

Filesize
4KB

Download
memory/1116-36-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1116-30-0x0000000076FC1000-0x0000000076FC2000-memory.dmp

Filesize
4KB

Download
memory/1116-29-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1168-31-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1168-32-0x0000000076FC1000-0x0000000076FC2000-memory.dmp

Filesize
4KB

Download
memory/1168-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1192-4-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

Filesize
24KB

Download
memory/1192-10-0x0000000076FC1000-0x0000000076FC2000-memory.dmp

Filesize
4KB

Download
memory/1192-22-0x00000000025F0000-0x00000000025F6000-memory.dmp

Filesize
24KB

Download
memory/1192-3-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

Filesize
24KB

Download
memory/1192-26-0x00000000025F0000-0x00000000025F6000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

Filesize
24KB

Download
memory/1524-9-0x000000007716F000-0x0000000077171000-memory.dmp

Filesize
8KB

Download
memory/1524-8-0x000000007716F000-0x0000000077170000-memory.dmp

Filesize
4KB

Download
memory/1524-7-0x0000000077170000-0x0000000077171000-memory.dmp

Filesize
4KB

Download
memory/1524-6-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1524-34-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1524-11-0x0000000076F70000-0x0000000077119000-memory.dmp

Filesize
1.7MB

Download
memory/1644-27-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1644-28-0x0000000076FC1000-0x0000000076FC2000-memory.dmp

Filesize
4KB

Download
memory/1644-25-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/2532-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2532-13-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2532-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2532-5-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2532-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download