tinba | 7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a

Analysis

max time kernel
105s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 20:29

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General

Target

7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
Size

160KB
MD5

569b8f3aa497826d3acf8f755593c2f3
SHA1

5075d354f475c9bc73ce903e42ef18fd65b04975
SHA256

7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a
SHA512

c742e592bee729ef9fac420984d169c6c9514b9636a25b284636f637cf5b5ff5ef96796780bf0304423e026304d6fac44049eb523e1a139513e36ea94a869240
SSDEEP

1536:oEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:rY+4MiIkLZJNAQ9J6vu

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1111CFF3 = "C:\\Users\\Admin\\AppData\\Roaming\\1111CFF3\\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/2076-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2744	4888	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	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4888	winver.exe
4888	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4888	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 4888	2076	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	84
PID 2076 wrote to memory of 4888	2076	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	84
PID 2076 wrote to memory of 4888	2076	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	84
PID 2076 wrote to memory of 4888	2076	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	84
PID 4888 wrote to memory of 3436	4888	winver.exe	56
PID 4888 wrote to memory of 2956	4888	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2956

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
  "C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2076
- - 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:4888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 352
      4⤵
      Program crash
      PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4888 -ip 4888
1⤵
PID:4548

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/2076-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2076-1-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/2076-4-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2076-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2076-9-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2956-13-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3436-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3436-5-0x00007FFA9FC8D000-0x00007FFA9FC8E000-memory.dmp

Filesize
4KB

Download
memory/4888-6-0x00007FFA9FBF0000-0x00007FFA9FDE5000-memory.dmp

Filesize
2.0MB

Download
memory/4888-11-0x00000000015A0000-0x00000000015A6000-memory.dmp

Filesize
24KB

Download
memory/4888-14-0x00000000015A0000-0x00000000015A6000-memory.dmp

Filesize
24KB

Download