tinba | 4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607c

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
05-12-2024 11:38

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General

Target

4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe
Size

34KB
MD5

d7e9e428085f0d3b894f9111601f92b0
SHA1

ffd172d105fce6c75e1012bb811af8e7021d07c1
SHA256

4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607c
SHA512

3a5fa52b1b871aa4433d2cc482431cd1511924038a05f1dca5b71008cef6fc25f8a788c190de887d364f1952e8abe86d73452926d35909ed60ac29bcb8f48e5c
SSDEEP

768:xp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Jy:xpYoX58z1uirL98xMWnT0OQ9Jy

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\777C18C1 = "C:\\Users\\Admin\\AppData\\Roaming\\777C18C1\\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/2652-0-0x0000000000400000-0x0000000000417000-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	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe
2828	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2828	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2828	2652	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe	32
PID 2652 wrote to memory of 2828	2652	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe	32
PID 2652 wrote to memory of 2828	2652	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe	32
PID 2652 wrote to memory of 2828	2652	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe	32
PID 2652 wrote to memory of 2828	2652	4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe	32
PID 2828 wrote to memory of 1180	2828	winver.exe	21
PID 2828 wrote to memory of 1060	2828	winver.exe	18
PID 2828 wrote to memory of 1120	2828	winver.exe	19
PID 2828 wrote to memory of 1180	2828	winver.exe	21
PID 2828 wrote to memory of 1140	2828	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1060

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1120

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1180
- C:\Users\Admin\AppData\Local\Temp\4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe
  "C:\Users\Admin\AppData\Local\Temp\4a92e331d6082c60fd00a0496c5e29b6a404e6eb793258ddbce25d1cf700607cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2652
- - 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:2828

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1140

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/1060-36-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1060-28-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1060-27-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1120-25-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1120-19-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1120-26-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1140-24-0x0000000001D60000-0x0000000001D66000-memory.dmp

Filesize
24KB

Download
memory/1140-31-0x0000000001D60000-0x0000000001D66000-memory.dmp

Filesize
24KB

Download
memory/1140-32-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1180-3-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1180-21-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1180-10-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1180-2-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1180-29-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1180-4-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/2652-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2652-13-0x0000000001C40000-0x0000000002640000-memory.dmp

Filesize
10.0MB

Download
memory/2652-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2652-5-0x0000000001C40000-0x0000000002640000-memory.dmp

Filesize
10.0MB

Download
memory/2652-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2828-7-0x0000000076F40000-0x0000000076F41000-memory.dmp

Filesize
4KB

Download
memory/2828-8-0x0000000076F3F000-0x0000000076F40000-memory.dmp

Filesize
4KB

Download
memory/2828-9-0x0000000076F3F000-0x0000000076F41000-memory.dmp

Filesize
8KB

Download
memory/2828-11-0x0000000076D40000-0x0000000076EE9000-memory.dmp

Filesize
1.7MB

Download
memory/2828-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2828-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download