tinba | 8e8643f384a788bca4808afc13e4e59ee8e75aa0d5279bf3b52d8f2d86340906

Analysis

max time kernel
148s
max time network
153s
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 18:33

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General

Target

JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe
Size

34KB
MD5

2eea5a13c7b8bec2300a2d2f6905a14b
SHA1

31ed276ebdc48dd6532b066ce1cfa4c0b7dd937e
SHA256

8e8643f384a788bca4808afc13e4e59ee8e75aa0d5279bf3b52d8f2d86340906
SHA512

d6747ada8ed02ec6441fd475fab3347d2b19a47e5731a2429d06b08f735725734ec0cc4d6f05375b095d1a3e1a7a8cba4435dbb6941bf0561a7e0b2fb253cd2b
SSDEEP

768:6p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:6pYoX58z1uirL98xMWnT0OQ9J2

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8E54714A = "C:\\Users\\Admin\\AppData\\Roaming\\8E54714A\\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/2616-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3532	3404	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_2eea5a13c7b8bec2300a2d2f6905a14b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3404	winver.exe
3404	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3404	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 3404	2616	JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe	83
PID 2616 wrote to memory of 3404	2616	JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe	83
PID 2616 wrote to memory of 3404	2616	JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe	83
PID 2616 wrote to memory of 3404	2616	JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe	83
PID 3404 wrote to memory of 3408	3404	winver.exe	55
PID 3404 wrote to memory of 2992	3404	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2992

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2eea5a13c7b8bec2300a2d2f6905a14b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2616
- - 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:3404
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 352
      4⤵
      Program crash
      PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3404 -ip 3404
1⤵
PID:4828

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/2616-1-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/2616-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-4-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/2616-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-9-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/2992-13-0x0000000000E40000-0x0000000000E46000-memory.dmp

Filesize
24KB

Download
memory/3404-11-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3404-14-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3404-5-0x0000000077702000-0x0000000077703000-memory.dmp

Filesize
4KB

Download
memory/3404-7-0x00007FF834A30000-0x00007FF834C25000-memory.dmp

Filesize
2.0MB

Download
memory/3408-3-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/3408-6-0x00007FF834ACD000-0x00007FF834ACE000-memory.dmp

Filesize
4KB

Download
memory/3408-2-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download