tinba | 99736ff1b3525552c3849b3b9282f98fdf66ecbcac424c9cc74bd6068e684a23

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 15:20

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General

Target

JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe
Size

88KB
MD5

248e7834494f4e1e0d5ed161b08326d0
SHA1

10f95e0ea941a4c6dca4b6e58a5e148389aadce7
SHA256

99736ff1b3525552c3849b3b9282f98fdf66ecbcac424c9cc74bd6068e684a23
SHA512

8bbd448181550659694f535acbd7d38643013c6549d0bcdce6fc3d174dfc57e871560ccd79561e9dd4fac40c9ea72f5b87fa0d914b6cc68fc624068e75d39eb2
SSDEEP

1536:f5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsN:f5fvp12UFKcD/6jwqWsN

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\85023F66 = "C:\\Users\\Admin\\AppData\\Roaming\\85023F66\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4312	3012	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	JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3012	winver.exe
3012	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3012	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 3012	4204	JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe	84
PID 4204 wrote to memory of 3012	4204	JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe	84
PID 4204 wrote to memory of 3012	4204	JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe	84
PID 4204 wrote to memory of 3012	4204	JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe	84
PID 3012 wrote to memory of 3476	3012	winver.exe	56
PID 3012 wrote to memory of 2792	3012	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2792

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3476
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_248e7834494f4e1e0d5ed161b08326d0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4204
- - 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:3012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 352
      4⤵
      Program crash
      PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3012 -ip 3012
1⤵
PID:1728

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/2792-13-0x00000000008C0000-0x00000000008C6000-memory.dmp

Filesize
24KB

Download
memory/3012-11-0x0000000000E30000-0x0000000000E36000-memory.dmp

Filesize
24KB

Download
memory/3012-14-0x0000000000E30000-0x0000000000E36000-memory.dmp

Filesize
24KB

Download
memory/3012-4-0x0000000077B32000-0x0000000077B33000-memory.dmp

Filesize
4KB

Download
memory/3012-7-0x00007FFD8B850000-0x00007FFD8BA45000-memory.dmp

Filesize
2.0MB

Download
memory/3476-2-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download
memory/3476-1-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download
memory/3476-6-0x00007FFD8B8EC000-0x00007FFD8B8ED000-memory.dmp

Filesize
4KB

Download
memory/3476-5-0x00007FFD8B8ED000-0x00007FFD8B8EE000-memory.dmp

Filesize
4KB

Download
memory/4204-3-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/4204-9-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/4204-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4204-0-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download