tinba | a20f57fa9cd5d5322cb3b718fcbb857ae9af25f63a376524cc7bce975bbe96ee

Analysis

max time kernel
146s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 18:15

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General

Target

JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe
Size

34KB
MD5

5f8986ef8db004964a7e7f64ed3e0d7f
SHA1

fc65db556ba81fc38b2508dfa457f631868743cf
SHA256

a20f57fa9cd5d5322cb3b718fcbb857ae9af25f63a376524cc7bce975bbe96ee
SHA512

ebce587f08089d23164b15937acf9baf44f7eb352e35eb446564b05f725b32f368081ed1694fe623fac67606476a3011c6472ea13ef40aa9cd999b771ba34742
SSDEEP

768:Pp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:PpYoX58z1uirL98xMWnT0OQ9J2

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\B77EE905 = "C:\\Users\\Admin\\AppData\\Roaming\\B77EE905\\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/3272-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
464	1824	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_5f8986ef8db004964a7e7f64ed3e0d7f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1824	winver.exe
1824	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1824	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 1824	3272	JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe	83
PID 3272 wrote to memory of 1824	3272	JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe	83
PID 3272 wrote to memory of 1824	3272	JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe	83
PID 3272 wrote to memory of 1824	3272	JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe	83
PID 1824 wrote to memory of 3404	1824	winver.exe	56
PID 1824 wrote to memory of 2836	1824	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2836

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3404
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f8986ef8db004964a7e7f64ed3e0d7f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3272
- - 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:1824
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 356
      4⤵
      Program crash
      PID:464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1824 -ip 1824
1⤵
PID:3908

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/1824-11-0x00000000028F0000-0x00000000028F6000-memory.dmp

Filesize
24KB

Download
memory/1824-14-0x00000000028F0000-0x00000000028F6000-memory.dmp

Filesize
24KB

Download
memory/1824-5-0x00000000779D2000-0x00000000779D3000-memory.dmp

Filesize
4KB

Download
memory/1824-7-0x00007FFECCF50000-0x00007FFECD145000-memory.dmp

Filesize
2.0MB

Download
memory/2836-13-0x0000000000B60000-0x0000000000B66000-memory.dmp

Filesize
24KB

Download
memory/3272-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/3272-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3272-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3272-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3272-9-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3404-2-0x00000000008C0000-0x00000000008C6000-memory.dmp

Filesize
24KB

Download
memory/3404-6-0x00007FFECCFED000-0x00007FFECCFEE000-memory.dmp

Filesize
4KB

Download
memory/3404-3-0x00000000008C0000-0x00000000008C6000-memory.dmp

Filesize
24KB

Download