tinba | bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995

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
22/01/2025, 13:36

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General

Target

bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe
Size

110KB
MD5

38ffee240d0ea1f35ca535d3b8f09aff
SHA1

8e1b08683ac45d3e2004307805b0cd2dfb9f8933
SHA256

bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995
SHA512

cc6e128c6969f0c5e6839a4eb67deac48ed1e62f6239dc9e48aea19f3aeb09f7eca6413d86e2c56d6aeb9de5139e1544c54cb085e0be771b605b6229b9f15ad2
SSDEEP

1536:AiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:AiyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\1214D715 = "C:\\Users\\Admin\\AppData\\Roaming\\1214D715\\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/2296-0-0x0000000000400000-0x000000000041E000-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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe
2504	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2504	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2504	2296	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	31
PID 2296 wrote to memory of 2504	2296	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	31
PID 2296 wrote to memory of 2504	2296	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	31
PID 2296 wrote to memory of 2504	2296	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	31
PID 2296 wrote to memory of 2504	2296	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	31
PID 2504 wrote to memory of 1216	2504	winver.exe	21
PID 2504 wrote to memory of 1104	2504	winver.exe	19
PID 2504 wrote to memory of 1152	2504	winver.exe	20
PID 2504 wrote to memory of 1216	2504	winver.exe	21
PID 2504 wrote to memory of 1600	2504	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:1152

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1216
- C:\Users\Admin\AppData\Local\Temp\bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe
  "C:\Users\Admin\AppData\Local\Temp\bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2296
- - 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:2504

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1600

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/1104-27-0x00000000775D1000-0x00000000775D2000-memory.dmp

Filesize
4KB

Download
memory/1104-26-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1152-30-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1152-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1216-2-0x0000000002E40000-0x0000000002E46000-memory.dmp

Filesize
24KB

Download
memory/1216-10-0x00000000775D1000-0x00000000775D2000-memory.dmp

Filesize
4KB

Download
memory/1216-23-0x0000000002630000-0x0000000002636000-memory.dmp

Filesize
24KB

Download
memory/1216-3-0x0000000002E40000-0x0000000002E46000-memory.dmp

Filesize
24KB

Download
memory/1216-4-0x0000000002E40000-0x0000000002E46000-memory.dmp

Filesize
24KB

Download
memory/1216-28-0x0000000002630000-0x0000000002636000-memory.dmp

Filesize
24KB

Download
memory/1600-31-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/1600-32-0x00000000775D1000-0x00000000775D2000-memory.dmp

Filesize
4KB

Download
memory/1600-25-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2296-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2296-13-0x0000000001E70000-0x0000000002870000-memory.dmp

Filesize
10.0MB

Download
memory/2296-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2296-5-0x0000000001E70000-0x0000000002870000-memory.dmp

Filesize
10.0MB

Download
memory/2296-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2504-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2504-7-0x0000000077780000-0x0000000077781000-memory.dmp

Filesize
4KB

Download
memory/2504-8-0x000000007777F000-0x0000000077780000-memory.dmp

Filesize
4KB

Download
memory/2504-9-0x000000007777F000-0x0000000077781000-memory.dmp

Filesize
8KB

Download
memory/2504-11-0x0000000077580000-0x0000000077729000-memory.dmp

Filesize
1.7MB

Download
memory/2504-29-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download