tinba | 5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00

Analysis

max time kernel
106s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2025 16:21

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General

Target

5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe
Size

110KB
MD5

018d064cd8e33d00ae107d077a380667
SHA1

163c995f97f7c4a70500b0e5a9e792df0991d469
SHA256

5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00
SHA512

d3a7f4fc95a313cc83ee6c1450aba9d3797c6ccae4e039f6a88ff538fcd220ed2abca98a1ff94f54623b0ec3c683ee95396baa551cd4d7ea95692ba04132a1d8
SSDEEP

1536:5iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:5iyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\889A3A98 = "C:\\Users\\Admin\\AppData\\Roaming\\889A3A98\\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/3060-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
732	2228	WerFault.exe	86

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	5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2228	winver.exe
2228	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3472	Explorer.EXE
Token: SeCreatePagefilePrivilege	3472	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2228	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2228	3060	5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe	86
PID 3060 wrote to memory of 2228	3060	5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe	86
PID 3060 wrote to memory of 2228	3060	5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe	86
PID 3060 wrote to memory of 2228	3060	5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe	86
PID 2228 wrote to memory of 3472	2228	winver.exe	56
PID 2228 wrote to memory of 2648	2228	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3472
- C:\Users\Admin\AppData\Local\Temp\5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe
  "C:\Users\Admin\AppData\Local\Temp\5dbac8087e1a9a993293737054220a4df7936cf96b171bb23e90a223a33ccc00.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3060
- - 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:2228
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2228 -s 352
      4⤵
      Program crash
      PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2228 -ip 2228
1⤵
PID:4732

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/2228-6-0x0000000077C42000-0x0000000077C43000-memory.dmp

Filesize
4KB

Download
memory/2228-15-0x0000000000DD0000-0x0000000000DD6000-memory.dmp

Filesize
24KB

Download
memory/2228-8-0x00007FFD83130000-0x00007FFD83325000-memory.dmp

Filesize
2.0MB

Download
memory/2228-5-0x0000000000DD0000-0x0000000000DD6000-memory.dmp

Filesize
24KB

Download
memory/2648-14-0x0000000000FE0000-0x0000000000FE6000-memory.dmp

Filesize
24KB

Download
memory/3060-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3060-4-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3060-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3060-10-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3060-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/3472-7-0x00007FFD831CD000-0x00007FFD831CE000-memory.dmp

Filesize
4KB

Download
memory/3472-2-0x0000000001490000-0x0000000001496000-memory.dmp

Filesize
24KB

Download
memory/3472-3-0x0000000001490000-0x0000000001496000-memory.dmp

Filesize
24KB

Download