tinba | c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97bea

Analysis

max time kernel
112s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 04:33

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General

Target

c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe
Size

89KB
MD5

cba9453d643237602103784dff62b2f0
SHA1

c0211db01c2ffe3ea680d6febf64603ecb1f043e
SHA256

c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97bea
SHA512

3f09cd9ef81f244a4afef4ab1c15134c3650ab31b05c342eac69ff79d27b1a4ceb590993f02132d911854b6a18a830fa6f4ec2a5dee8cef4defc8a4c34b5f5cc
SSDEEP

1536:f1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7q:d+4MJIkLZJNAQ9Jo9q

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7AE336D2 = "C:\\Users\\Admin\\AppData\\Roaming\\7AE336D2\\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/3820-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1600	3200	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	c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3200	winver.exe
3200	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3200	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 3200	3820	c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe	83
PID 3820 wrote to memory of 3200	3820	c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe	83
PID 3820 wrote to memory of 3200	3820	c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe	83
PID 3820 wrote to memory of 3200	3820	c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe	83
PID 3200 wrote to memory of 3440	3200	winver.exe	56
PID 3200 wrote to memory of 2648	3200	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe
  "C:\Users\Admin\AppData\Local\Temp\c4a1c138e34471834dbfdc40011ddd62f4afde182e98b4bf12cf58e4a5f97beaN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3820
- - 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:3200
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 352
      4⤵
      Program crash
      PID:1600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3200 -ip 3200
1⤵
PID:3968

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/2648-13-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/3200-5-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/3200-14-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/3200-11-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/3200-7-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/3440-6-0x00007FF81688D000-0x00007FF81688E000-memory.dmp

Filesize
4KB

Download
memory/3440-3-0x0000000002430000-0x0000000002436000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x0000000002430000-0x0000000002436000-memory.dmp

Filesize
24KB

Download
memory/3820-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3820-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/3820-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3820-9-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/3820-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download