tinba | fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99ed

Analysis

max time kernel
107s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 20:35

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General

Target

fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe
Size

88KB
MD5

f791595931bbd19a1564e8a6911fbb00
SHA1

577aeabc5ab221533a39fa798ef90b2b3ce884ac
SHA256

fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99ed
SHA512

dec6fdf000783fca29a3ac02b73e34352523100055f3b44e9fb9cdc4fce8d4be749ca2a4eb8709d7db23384516912c0cc0464a1f9a570ccb89b2cc64c21b3e04
SSDEEP

1536:kz44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsN:kzvokZR/KM/ysjwqWsN

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DA9017EC = "C:\\Users\\Admin\\AppData\\Roaming\\DA9017EC\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3268	3188	WerFault.exe	83

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	fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3188	winver.exe
3188	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3188	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 3188	2092	fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe	83
PID 2092 wrote to memory of 3188	2092	fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe	83
PID 2092 wrote to memory of 3188	2092	fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe	83
PID 2092 wrote to memory of 3188	2092	fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe	83
PID 3188 wrote to memory of 3420	3188	winver.exe	55
PID 3188 wrote to memory of 2616	3188	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe
  "C:\Users\Admin\AppData\Local\Temp\fea28520074bb25549bb3e9d83ce231b68e61aea6eddd6565019ce09da6f99edN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2092
- - 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:3188
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 352
      4⤵
      Program crash
      PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3188 -ip 3188
1⤵
PID:4916

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/2092-0-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2092-3-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2092-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2092-8-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2616-12-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/3188-4-0x0000000077942000-0x0000000077943000-memory.dmp

Filesize
4KB

Download
memory/3188-6-0x00007FFD946F0000-0x00007FFD948E5000-memory.dmp

Filesize
2.0MB

Download
memory/3188-10-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/3188-13-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/3420-2-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3420-1-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3420-5-0x00007FFD9478D000-0x00007FFD9478E000-memory.dmp

Filesize
4KB

Download