tinba | 77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e

Analysis

max time kernel
109s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 01:49

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General

Target

77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe
Size

45KB
MD5

5a669e90fec9e8af5f97785f896a338a
SHA1

e4493b9fda780fcd696fcf7141f2f9a8f58993a4
SHA256

77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e
SHA512

18715d6fbcdffce555eef9ac2f9ea41fd8ac4c81343a629cefa6aca739a6443d22a0ca35e983d33b03b0cb54886ebdd49721349ea6dda71ee2006cb757ddbc2e
SSDEEP

768:zhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:lsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E60841BB = "C:\\Users\\Admin\\AppData\\Roaming\\E60841BB\\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/2424-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1524	5080	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	77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5080	winver.exe
5080	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3356	Explorer.EXE
Token: SeCreatePagefilePrivilege	3356	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5080	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 5080	2424	77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe	84
PID 2424 wrote to memory of 5080	2424	77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe	84
PID 2424 wrote to memory of 5080	2424	77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe	84
PID 2424 wrote to memory of 5080	2424	77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe	84
PID 5080 wrote to memory of 3356	5080	winver.exe	55
PID 5080 wrote to memory of 2672	5080	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3356
- C:\Users\Admin\AppData\Local\Temp\77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe
  "C:\Users\Admin\AppData\Local\Temp\77320cab4839bcaba700e036bf6ab5b488e36d730188e6567f52bce0d200d91e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2424
- - 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:5080
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 352
      4⤵
      Program crash
      PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5080 -ip 5080
1⤵
PID:3964

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/2424-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2424-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2424-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2424-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2424-9-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2672-13-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/3356-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3356-6-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp

Filesize
4KB

Download
memory/3356-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5080-7-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

Filesize
2.0MB

Download
memory/5080-5-0x00000000776A2000-0x00000000776A3000-memory.dmp

Filesize
4KB

Download
memory/5080-11-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download
memory/5080-14-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download