tinba | a9b9f50e71d6630dbcd4b72812405c2c10f740b697a74192ffd1849f53ba3cda

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2025 11:46

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General

Target

JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe
Size

89KB
MD5

21c98d8341a117ae697617f560fd6a78
SHA1

ad35b3ea165357af93deb30d17f1557afdf9ef35
SHA256

a9b9f50e71d6630dbcd4b72812405c2c10f740b697a74192ffd1849f53ba3cda
SHA512

df83f46801c2daf0a5b299d4b71bf44459a4ce1f9873a84f3a465a8cfae19c2d31f12755be45cd24f0e94173189e92a254fe7639c7d36506f3844f67edf4de26
SSDEEP

1536:Tr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:n+4MJIkLZJNAQ9Jo9e

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25249DA9 = "C:\\Users\\Admin\\AppData\\Roaming\\25249DA9\\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/2352-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1480	4060	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	JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4060	winver.exe
4060	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4060	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 4060	2352	JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe	83
PID 2352 wrote to memory of 4060	2352	JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe	83
PID 2352 wrote to memory of 4060	2352	JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe	83
PID 2352 wrote to memory of 4060	2352	JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe	83
PID 4060 wrote to memory of 3460	4060	winver.exe	56
PID 4060 wrote to memory of 2440	4060	winver.exe	42

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2440

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21c98d8341a117ae697617f560fd6a78.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2352
- - 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:4060
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 352
      4⤵
      Program crash
      PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4060 -ip 4060
1⤵
PID:2364

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/2352-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2352-1-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/2352-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2352-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2352-9-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2440-13-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3460-2-0x0000000001250000-0x0000000001256000-memory.dmp

Filesize
24KB

Download
memory/3460-6-0x00007FF8DF44D000-0x00007FF8DF44E000-memory.dmp

Filesize
4KB

Download
memory/3460-3-0x0000000001250000-0x0000000001256000-memory.dmp

Filesize
24KB

Download
memory/4060-7-0x00007FF8DF3B0000-0x00007FF8DF5A5000-memory.dmp

Filesize
2.0MB

Download
memory/4060-5-0x00000000774B2000-0x00000000774B3000-memory.dmp

Filesize
4KB

Download
memory/4060-11-0x0000000002890000-0x0000000002896000-memory.dmp

Filesize
24KB

Download
memory/4060-14-0x0000000002890000-0x0000000002896000-memory.dmp

Filesize
24KB

Download