tinba | e4498e8f0db9ced7259ce39cadb4066124800133b298fa45c9bc6445833d1040

General

Target

c84f359ca4a82263c4b41b713eaf2750N.exe
Size

45KB
MD5

c84f359ca4a82263c4b41b713eaf2750
SHA1

4880d3949caa1965a48df54849989b83bf4c526d
SHA256

e4498e8f0db9ced7259ce39cadb4066124800133b298fa45c9bc6445833d1040
SHA512

350cb40ab08daf27cb530bb98b3c1277956a6197effc05d4bc59cd1fa2ba028b9218e521b3e7fd172fa3c8644c04aa325db786a1074922ce1df8b178d7b33a30
SSDEEP

768:shP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:AsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4872-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A0915604 = "C:\\Users\\Admin\\AppData\\Roaming\\A0915604\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1260	1252	WerFault.exe	84

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	c84f359ca4a82263c4b41b713eaf2750N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1252	winver.exe
1252	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE
Token: SeShutdownPrivilege	3348	Explorer.EXE
Token: SeCreatePagefilePrivilege	3348	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1252	winver.exe
3348	Explorer.EXE
3348	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3348	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 1252	4872	c84f359ca4a82263c4b41b713eaf2750N.exe	84
PID 4872 wrote to memory of 1252	4872	c84f359ca4a82263c4b41b713eaf2750N.exe	84
PID 4872 wrote to memory of 1252	4872	c84f359ca4a82263c4b41b713eaf2750N.exe	84
PID 4872 wrote to memory of 1252	4872	c84f359ca4a82263c4b41b713eaf2750N.exe	84
PID 1252 wrote to memory of 3348	1252	winver.exe	56
PID 1252 wrote to memory of 2552	1252	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2552

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3348
- C:\Users\Admin\AppData\Local\Temp\c84f359ca4a82263c4b41b713eaf2750N.exe
  "C:\Users\Admin\AppData\Local\Temp\c84f359ca4a82263c4b41b713eaf2750N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4872
- - 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:1252
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 352
      4⤵
      Program crash
      PID:1260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1252 -ip 1252
1⤵
PID:1772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1252-6-0x00007FFF167F0000-0x00007FFF169E5000-memory.dmp

Filesize
2.0MB

Download
memory/1252-16-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Filesize
24KB

Download
memory/1252-13-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Filesize
24KB

Download
memory/2552-15-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/3348-2-0x0000000002710000-0x0000000002716000-memory.dmp

Filesize
24KB

Download
memory/3348-5-0x00007FFF1688D000-0x00007FFF1688E000-memory.dmp

Filesize
4KB

Download
memory/3348-7-0x00007FFF16A20000-0x00007FFF16A21000-memory.dmp

Filesize
4KB

Download
memory/3348-11-0x00007FFF16A00000-0x00007FFF16A01000-memory.dmp

Filesize
4KB

Download
memory/3348-3-0x0000000002710000-0x0000000002716000-memory.dmp

Filesize
24KB

Download
memory/4872-4-0x0000000002070000-0x0000000002A70000-memory.dmp

Filesize
10.0MB

Download
memory/4872-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4872-10-0x0000000002070000-0x0000000002A70000-memory.dmp

Filesize
10.0MB

Download
memory/4872-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4872-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads