tinba | 53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851

Analysis

max time kernel
142s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 17:21

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General

Target

53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe
Size

45KB
MD5

af4374b5c079a55ec8feae837fec7ad0
SHA1

2735d21963202f77f02b509aebff1d36ec502d26
SHA256

53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851
SHA512

1bae61cf4957872e429ff54bed24653ec1ff525d363201afb8ab435bc095de7219f6b7a8928d3a3e1a0041e9f89dcf26f24f53de1c0db5ff94aba1ae6cc4f17a
SSDEEP

768:XhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:xsWE9N5dFu53dsniQaB/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

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\7614EB86 = "C:\\Users\\Admin\\AppData\\Roaming\\7614EB86\\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/4208-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1380	1804	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	53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1804	winver.exe
1804	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 1804	4208	53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe	83
PID 4208 wrote to memory of 1804	4208	53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe	83
PID 4208 wrote to memory of 1804	4208	53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe	83
PID 4208 wrote to memory of 1804	4208	53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe	83
PID 1804 wrote to memory of 3536	1804	winver.exe	56
PID 1804 wrote to memory of 2596	1804	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2596

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3536
- C:\Users\Admin\AppData\Local\Temp\53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe
  "C:\Users\Admin\AppData\Local\Temp\53cfcb226763475b76b04f932050fb01ec2195d91ef9eab3ef3a215a9a727851N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4208
- - 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:1804
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 352
      4⤵
      Program crash
      PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1804 -ip 1804
1⤵
PID:2836

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/1804-6-0x0000000077D92000-0x0000000077D93000-memory.dmp

Filesize
4KB

Download
memory/1804-16-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/1804-8-0x00007FFEF03B0000-0x00007FFEF05A5000-memory.dmp

Filesize
2.0MB

Download
memory/1804-5-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/2596-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3536-3-0x00000000010B0000-0x00000000010B6000-memory.dmp

Filesize
24KB

Download
memory/3536-7-0x00007FFEF044D000-0x00007FFEF044E000-memory.dmp

Filesize
4KB

Download
memory/3536-2-0x00000000010B0000-0x00000000010B6000-memory.dmp

Filesize
24KB

Download
memory/4208-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4208-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4208-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4208-11-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4208-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download