tinba | 42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8

Analysis

max time kernel
107s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 10:25

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General

Target

42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe
Size

88KB
MD5

d9069028240e6c4e6b0cc8cc1fe04890
SHA1

e2c2470103e118e3eba1281f19d48cea3a5ad323
SHA256

42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8
SHA512

fb3a9f46f091114daf8d409b2266b1c0130996f48c6aec94f18a3b0de6f00f8a68e10ddd4a7212076e3df84dc712af2699819945a60ffaa26d9af52ea0cb838e
SSDEEP

1536:L5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:L5fvp12UFKcD/6jwqWsNI

Score

10^/10

tinba banker discovery persistence trojan

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\08C3455C = "C:\\Users\\Admin\\AppData\\Roaming\\08C3455C\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3640	4468	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	42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4468	winver.exe
4468	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4468	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 4468	1916	42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe	83
PID 1916 wrote to memory of 4468	1916	42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe	83
PID 1916 wrote to memory of 4468	1916	42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe	83
PID 1916 wrote to memory of 4468	1916	42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe	83
PID 4468 wrote to memory of 3420	4468	winver.exe	56
PID 4468 wrote to memory of 2848	4468	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2848

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe
  "C:\Users\Admin\AppData\Local\Temp\42842a45d9d666225a611511484db5c1581a1c31ff59f28ffd06df232de858e8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1916
- - 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:4468
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 352
      4⤵
      Program crash
      PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4468 -ip 4468
1⤵
PID:4628

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/1916-0-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download
memory/1916-3-0x0000000002090000-0x0000000002A90000-memory.dmp

Filesize
10.0MB

Download
memory/1916-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1916-8-0x0000000002090000-0x0000000002A90000-memory.dmp

Filesize
10.0MB

Download
memory/2848-12-0x0000000000F80000-0x0000000000F86000-memory.dmp

Filesize
24KB

Download
memory/3420-1-0x0000000001220000-0x0000000001226000-memory.dmp

Filesize
24KB

Download
memory/3420-2-0x0000000001220000-0x0000000001226000-memory.dmp

Filesize
24KB

Download
memory/3420-5-0x00007FF9A78CD000-0x00007FF9A78CE000-memory.dmp

Filesize
4KB

Download
memory/4468-4-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/4468-6-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-10-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/4468-13-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download