tinba | adf1f467b03aeda9d27b3475a5b39b8a8ffe9addadb48f693fda01ec31e2022e

General

Target

8e69c33bf968c567e49d56a78dbaf170N.exe
Size

45KB
MD5

8e69c33bf968c567e49d56a78dbaf170
SHA1

b57bd6632b87f3e2170e8c71e6e60111204cb23d
SHA256

adf1f467b03aeda9d27b3475a5b39b8a8ffe9addadb48f693fda01ec31e2022e
SHA512

ee0cc9443c23a331f8091a628238ddb5d72b96bdfcbfbf977c14b2aa7fb018d4e2a6094d9e6658dd0175e6ceedd7ad5ec79680be759bfdeb38c8280585b3008e
SSDEEP

768:7hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:9sWE9N5dFu53dsniQaB/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/4100-0-0x0000000000400000-0x000000000041D000-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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6D6BAF3E = "C:\\Users\\Admin\\AppData\\Roaming\\6D6BAF3E\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4956	3500	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	8e69c33bf968c567e49d56a78dbaf170N.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
3500	winver.exe
3500	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3500	winver.exe
3492	Explorer.EXE
3492	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3492	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 3500	4100	8e69c33bf968c567e49d56a78dbaf170N.exe	84
PID 4100 wrote to memory of 3500	4100	8e69c33bf968c567e49d56a78dbaf170N.exe	84
PID 4100 wrote to memory of 3500	4100	8e69c33bf968c567e49d56a78dbaf170N.exe	84
PID 4100 wrote to memory of 3500	4100	8e69c33bf968c567e49d56a78dbaf170N.exe	84
PID 3500 wrote to memory of 3492	3500	winver.exe	56
PID 3500 wrote to memory of 2612	3500	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2612

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:3492
- C:\Users\Admin\AppData\Local\Temp\8e69c33bf968c567e49d56a78dbaf170N.exe
  "C:\Users\Admin\AppData\Local\Temp\8e69c33bf968c567e49d56a78dbaf170N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4100
- - 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:3500
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 352
      4⤵
      Program crash
      PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3500 -ip 3500
1⤵
PID:2560

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2612-16-0x0000000000980000-0x0000000000986000-memory.dmp

Filesize
24KB

Download
memory/2612-19-0x00007FFAC7FB0000-0x00007FFAC7FB1000-memory.dmp

Filesize
4KB

Download
memory/3492-8-0x00007FFAC7FC0000-0x00007FFAC7FC1000-memory.dmp

Filesize
4KB

Download
memory/3492-12-0x00007FFAC7FA0000-0x00007FFAC7FA1000-memory.dmp

Filesize
4KB

Download
memory/3492-6-0x00007FFAC7E2D000-0x00007FFAC7E2E000-memory.dmp

Filesize
4KB

Download
memory/3492-2-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3492-3-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3500-5-0x0000000077962000-0x0000000077963000-memory.dmp

Filesize
4KB

Download
memory/3500-7-0x00007FFAC7D90000-0x00007FFAC7F85000-memory.dmp

Filesize
2.0MB

Download
memory/3500-17-0x00000000026A0000-0x00000000026A6000-memory.dmp

Filesize
24KB

Download
memory/3500-14-0x00000000026A0000-0x00000000026A6000-memory.dmp

Filesize
24KB

Download
memory/4100-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4100-11-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4100-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4100-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4100-1-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads