tinba | b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 14:27

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General

Target

b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
Size

225KB
MD5

576b598102a8a90a7c4af096cef75910
SHA1

315042a1016a3702fed3b681f4f90eacb3e39d85
SHA256

b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97
SHA512

5a91bfeec4495cda3e5c9ca039f782f744d4949b7599bea165d46fc70d9e0a9c60098fa5a1de5d4b2878cccfd3dd2f00901d8a22d4704d73bb6d56b6c583e103
SSDEEP

6144:TA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:TATuTAnKGwUAW3ycQqgf

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\A3F8ED6B = "C:\\Users\\Admin\\AppData\\Roaming\\A3F8ED6B\\bin.exe"	winver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe
2800	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2800	winver.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2800	2252	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	29
PID 2252 wrote to memory of 2800	2252	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	29
PID 2252 wrote to memory of 2800	2252	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	29
PID 2252 wrote to memory of 2800	2252	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	29
PID 2252 wrote to memory of 2800	2252	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	29
PID 2800 wrote to memory of 1200	2800	winver.exe	20
PID 2800 wrote to memory of 1128	2800	winver.exe	18
PID 2800 wrote to memory of 1172	2800	winver.exe	19
PID 2800 wrote to memory of 1200	2800	winver.exe	20
PID 2800 wrote to memory of 1628	2800	winver.exe	22
PID 2800 wrote to memory of 2252	2800	winver.exe	28

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1128

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
  "C:\Users\Admin\AppData\Local\Temp\b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2252
- - 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:2800

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1628

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 Information Discovery

T1082

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/1128-27-0x0000000001B40000-0x0000000001B46000-memory.dmp

Filesize
24KB

Download
memory/1128-11-0x0000000001B40000-0x0000000001B46000-memory.dmp

Filesize
24KB

Download
memory/1172-14-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1172-26-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1200-6-0x0000000002980000-0x0000000002986000-memory.dmp

Filesize
24KB

Download
memory/1200-17-0x0000000002BC0000-0x0000000002BC6000-memory.dmp

Filesize
24KB

Download
memory/1200-28-0x0000000002BC0000-0x0000000002BC6000-memory.dmp

Filesize
24KB

Download
memory/1200-1-0x0000000002980000-0x0000000002986000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x0000000002980000-0x0000000002986000-memory.dmp

Filesize
24KB

Download
memory/1628-20-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1628-29-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2252-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2800-25-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2800-4-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/2800-31-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download