tinba | 44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bb

Analysis

max time kernel
119s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 11:43

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General

Target

44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe
Size

110KB
MD5

d80afce384e2dcda5c05aaa76d7482a0
SHA1

96c36a0e91a4075a39c9661fc64c468f17f1aa97
SHA256

44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bb
SHA512

c4ab25ded2e987cc690dda7e6df0d5925eec1ceeed56707f850f826e1eafabfff2e35a62116b4040954fb80f03bc2c86b1d3d3f51cec7390df42dc1d90064dd7
SSDEEP

1536:hiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Ew:hiyvRmDLs/ZrwWJjAqGcRJ2hw

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\02DCF670 = "C:\\Users\\Admin\\AppData\\Roaming\\02DCF670\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3616-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4420	2108	WerFault.exe	85

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	44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2108	winver.exe
2108	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2108	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 2108	3616	44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe	85
PID 3616 wrote to memory of 2108	3616	44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe	85
PID 3616 wrote to memory of 2108	3616	44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe	85
PID 3616 wrote to memory of 2108	3616	44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe	85
PID 2108 wrote to memory of 3436	2108	winver.exe	56
PID 2108 wrote to memory of 2556	2108	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2556

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe
  "C:\Users\Admin\AppData\Local\Temp\44e9255cd30ca9b2a6d72978fc124b9c6d44cea4eb3016bbfc1845ea808db2bbN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3616
- - 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:2108
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 352
      4⤵
      Program crash
      PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2108 -ip 2108
1⤵
PID:1576

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/2108-6-0x0000000077AF2000-0x0000000077AF3000-memory.dmp

Filesize
4KB

Download
memory/2108-15-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/2108-8-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/2108-5-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/2556-14-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3436-7-0x00007FFA5480D000-0x00007FFA5480E000-memory.dmp

Filesize
4KB

Download
memory/3436-3-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3616-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3616-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3616-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3616-10-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3616-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download