tinba | d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552

Analysis

max time kernel
131s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/10/2024, 12:12

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General

Target
d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe
Size 34KB
Sample241007-pdefqsvcmj
SHA256 d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552
MD5 ab02d5794c30c5b3ff780845e747b300
SHA1 81f3c77585189deb4204a0334f2858e906abc5e7
SHA512 45937043a325f2045278c994a453e4f852cc9e445cb4048d4e680443fb52cdc6fbfab0e2c77c18ce1ef52bd7d4210056a030d10963ffc26ba8c08d5295d10b77
SSDEEP 768:jp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:jpYoX58z1uirL98xMWnT0OQ9J2
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3A6D27ED = "C:\\Users\\Admin\\AppData\\Roaming\\3A6D27ED\\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/4044-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
768	4796	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	d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4796	winver.exe
4796	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4796	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 4796	4044	d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe	85
PID 4044 wrote to memory of 4796	4044	d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe	85
PID 4044 wrote to memory of 4796	4044	d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe	85
PID 4044 wrote to memory of 4796	4044	d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe	85
PID 4796 wrote to memory of 3520	4796	winver.exe	56
PID 4796 wrote to memory of 2644	4796	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2644

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520
- C:\Users\Admin\AppData\Local\Temp\d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe
  "C:\Users\Admin\AppData\Local\Temp\d096de6f0e3f9d893647fcfed40202f7f0f9b70577a8baf531ce136fc16af552N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - 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:4796
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 352
      4⤵
      Program crash
      PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4796 -ip 4796
1⤵
PID:3680

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

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Downloads

memory/2644-14-0x00000000004D0000-0x00000000004D6000-memory.dmp

Download

memory/3520-6-0x00007FFC6954D000-0x00007FFC6954E000-memory.dmp

Download

memory/3520-2-0x0000000002130000-0x0000000002136000-memory.dmp

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memory/3520-3-0x0000000002130000-0x0000000002136000-memory.dmp

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memory/4044-10-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Download

memory/4044-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

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memory/4044-9-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4044-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4044-1-0x0000000000530000-0x0000000000531000-memory.dmp

Download

memory/4796-5-0x0000000077A72000-0x0000000077A73000-memory.dmp

Download

memory/4796-7-0x00007FFC694B0000-0x00007FFC696A5000-memory.dmp

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memory/4796-12-0x0000000000980000-0x0000000000986000-memory.dmp

Download

memory/4796-15-0x0000000000980000-0x0000000000986000-memory.dmp

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