tinba | de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4

Analysis

max time kernel
103s
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
25-11-2024 04:31

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General

Target

de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe
Size

45KB
MD5

054a035f8e025d4104fc99773b11f8c7
SHA1

690c6b79eee1ca79fbc1761dfa2e991addcba07d
SHA256

de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4
SHA512

a4f958216edf958722dc0f4347f7b5417d2e59bc84efdea26f200e2b6f52b78995efd86660d3a5ce0b239e5c595cc4e8a0e1b542e4edd2973d6503a8f6cff4a9
SSDEEP

768:5hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:jsWE9N5dFu53dsniQaB/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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A3F935DA = "C:\\Users\\Admin\\AppData\\Roaming\\A3F935DA\\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/4084-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2388	4280	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	de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4280	winver.exe
4280	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
4280	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 4280	4084	de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe	84
PID 4084 wrote to memory of 4280	4084	de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe	84
PID 4084 wrote to memory of 4280	4084	de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe	84
PID 4084 wrote to memory of 4280	4084	de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe	84
PID 4280 wrote to memory of 3520	4280	winver.exe	56
PID 4280 wrote to memory of 2476	4280	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2476

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520
- C:\Users\Admin\AppData\Local\Temp\de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe
  "C:\Users\Admin\AppData\Local\Temp\de3845d84b2c110fb2b7786ea3836373864df6303b7382ade7070cea7ef50da4.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4084
- - 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:4280
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4280 -s 352
      4⤵
      Program crash
      PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4280 -ip 4280
1⤵
PID:2524

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/2476-13-0x00000000009C0000-0x00000000009C6000-memory.dmp

Filesize
24KB

Download
memory/3520-6-0x00007FFEC844D000-0x00007FFEC844E000-memory.dmp

Filesize
4KB

Download
memory/3520-2-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/3520-3-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/4084-9-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/4084-4-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/4084-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4084-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4084-1-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/4280-5-0x0000000077622000-0x0000000077623000-memory.dmp

Filesize
4KB

Download
memory/4280-7-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/4280-11-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

Filesize
24KB

Download
memory/4280-14-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

Filesize
24KB

Download