tinba | e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7

Analysis

max time kernel
108s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 01:56

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General

Target

e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe
Size

110KB
MD5

fe7fae81b46140a0abec1d31f03c17e0
SHA1

f92c7306d3cfb30e4234f1c197821992acb7aa2a
SHA256

e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7
SHA512

dafcce604d5626082944e963720aa09ce68e254b026853718ca69823f9b4109ba26506c5709bf1678f91880340d025400e2989ab94ab6d574c92298304b2201a
SSDEEP

1536:HiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:HiyvRmDLs/ZrwWJjAqGcRJ2hg

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\1B222364 = "C:\\Users\\Admin\\AppData\\Roaming\\1B222364\\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/3604-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3996	4288	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	e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4288	winver.exe
4288	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4288	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 4288	3604	e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe	84
PID 3604 wrote to memory of 4288	3604	e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe	84
PID 3604 wrote to memory of 4288	3604	e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe	84
PID 3604 wrote to memory of 4288	3604	e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe	84
PID 4288 wrote to memory of 3504	4288	winver.exe	56
PID 4288 wrote to memory of 2828	4288	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2828

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3504
- C:\Users\Admin\AppData\Local\Temp\e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe
  "C:\Users\Admin\AppData\Local\Temp\e8dfc277a9f269239086306b59eea2bb8f0a7857b05b86752d37412da7f3e1d7N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3604
- - 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:4288
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 352
      4⤵
      Program crash
      PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4288 -ip 4288
1⤵
PID:1416

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/2828-14-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/3504-7-0x00007FFCE06AD000-0x00007FFCE06AE000-memory.dmp

Filesize
4KB

Download
memory/3504-3-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3604-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3604-4-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/3604-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3604-10-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/3604-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/4288-6-0x0000000076F52000-0x0000000076F53000-memory.dmp

Filesize
4KB

Download
memory/4288-5-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download
memory/4288-8-0x00007FFCE0610000-0x00007FFCE0805000-memory.dmp

Filesize
2.0MB

Download
memory/4288-15-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download