tinba | 85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 17:03

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General

Target

85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
Size

45KB
MD5

75456bb7d5f8847c05fb651b7b0d0270
SHA1

faafe09c1879cdcc0dedb5f138e13d1f9ee18b7e
SHA256

85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906
SHA512

5b8dc8c5d049a6aac94f200f6cc9f6e845e26e56e547d831484108f6aa72681cbe52b2365869b87c52829ffe00c980a18b41bb8d46208eaaceed84b1de2c081b
SSDEEP

768:rhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ21:NsWE9N5dFu53dsniQaB/xZ14n7zIF+qZ

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\1E721130 = "C:\\Users\\Admin\\AppData\\Roaming\\1E721130\\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/2128-0-0x0000000000400000-0x000000000041D000-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	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe
3004	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3004	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3004	2128	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	32
PID 2128 wrote to memory of 3004	2128	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	32
PID 2128 wrote to memory of 3004	2128	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	32
PID 2128 wrote to memory of 3004	2128	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	32
PID 2128 wrote to memory of 3004	2128	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	32
PID 3004 wrote to memory of 1200	3004	winver.exe	21
PID 3004 wrote to memory of 1108	3004	winver.exe	19
PID 3004 wrote to memory of 1160	3004	winver.exe	20
PID 3004 wrote to memory of 1200	3004	winver.exe	21
PID 3004 wrote to memory of 2036	3004	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1108

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
  "C:\Users\Admin\AppData\Local\Temp\85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2128
- - 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:3004

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1108-27-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/1108-28-0x0000000077941000-0x0000000077942000-memory.dmp

Filesize
4KB

Download
memory/1160-31-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1160-21-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x0000000002EC0000-0x0000000002EC6000-memory.dmp

Filesize
24KB

Download
memory/1200-2-0x0000000002EC0000-0x0000000002EC6000-memory.dmp

Filesize
24KB

Download
memory/1200-10-0x0000000077941000-0x0000000077942000-memory.dmp

Filesize
4KB

Download
memory/1200-4-0x0000000002EC0000-0x0000000002EC6000-memory.dmp

Filesize
24KB

Download
memory/1200-23-0x0000000002E80000-0x0000000002E86000-memory.dmp

Filesize
24KB

Download
memory/1200-29-0x0000000002E80000-0x0000000002E86000-memory.dmp

Filesize
24KB

Download
memory/2036-26-0x0000000001E90000-0x0000000001E96000-memory.dmp

Filesize
24KB

Download
memory/2036-32-0x0000000077941000-0x0000000077942000-memory.dmp

Filesize
4KB

Download
memory/2036-33-0x0000000001E90000-0x0000000001E96000-memory.dmp

Filesize
24KB

Download
memory/2128-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2128-13-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/2128-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2128-5-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/2128-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/3004-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/3004-7-0x0000000077AF0000-0x0000000077AF1000-memory.dmp

Filesize
4KB

Download
memory/3004-8-0x0000000077AEF000-0x0000000077AF0000-memory.dmp

Filesize
4KB

Download
memory/3004-9-0x0000000077AEF000-0x0000000077AF1000-memory.dmp

Filesize
8KB

Download
memory/3004-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/3004-11-0x00000000778F0000-0x0000000077A99000-memory.dmp

Filesize
1.7MB

Download
memory/3004-38-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download