tinba | 75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63b

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 07:19

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General

Target

75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe
Size

160KB
MD5

fbb3d5de847f5c4f8ef6cc418721c000
SHA1

1848e13dd74c529e374315b512f06d28dc723546
SHA256

75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63b
SHA512

c84a02f2850f025aed10651695790e0d2e7043d14bdabfcd4ff15a78cc8ae83f6182da7817f17dc0ab6b9066905a766d5495fd3dc713958130b9846490836db7
SSDEEP

1536:gEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:TY+4MiIkLZJNAQ9J6v

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\57D2236B = "C:\\Users\\Admin\\AppData\\Roaming\\57D2236B\\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/3412-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
876	3904	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	75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3904	winver.exe
3904	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
3904	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 3904	3412	75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe	83
PID 3412 wrote to memory of 3904	3412	75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe	83
PID 3412 wrote to memory of 3904	3412	75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe	83
PID 3412 wrote to memory of 3904	3412	75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe	83
PID 3904 wrote to memory of 3404	3904	winver.exe	56
PID 3904 wrote to memory of 2832	3904	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2832

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3404
- C:\Users\Admin\AppData\Local\Temp\75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe
  "C:\Users\Admin\AppData\Local\Temp\75b1c102f2ec15657cc319d8a7bfda51d001515c8735a7667ac8da1092c8a63bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3412
- - 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:3904
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 352
      4⤵
      Program crash
      PID:876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3904 -ip 3904
1⤵
PID:4812

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/2832-14-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3404-6-0x00007FFC4C48D000-0x00007FFC4C48E000-memory.dmp

Filesize
4KB

Download
memory/3404-3-0x0000000001100000-0x0000000001106000-memory.dmp

Filesize
24KB

Download
memory/3404-2-0x0000000001100000-0x0000000001106000-memory.dmp

Filesize
24KB

Download
memory/3412-10-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Filesize
10.0MB

Download
memory/3412-4-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Filesize
10.0MB

Download
memory/3412-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3412-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3412-1-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/3904-5-0x0000000077E42000-0x0000000077E43000-memory.dmp

Filesize
4KB

Download
memory/3904-7-0x00007FFC4C3F0000-0x00007FFC4C5E5000-memory.dmp

Filesize
2.0MB

Download
memory/3904-12-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3904-15-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download