tinba | 703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5

Analysis

max time kernel
52s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 19:20

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General

Target

703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe
Size

110KB
MD5

1a7466ca78ac174c5a5671c7be5c41fc
SHA1

1feefd05814f8460b88e1c3a04ddfa90ca3efe87
SHA256

703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5
SHA512

6f5a18df78ede8a0607184dfcf7d9042439d937acf56268ba77d2f749184c993d5d8f31e6ad4f82f1d5b3016fd396efca6908256ca9f0ab2f4b4fc81ffdf1b7f
SSDEEP

1536:kiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:kiyvRmDLs/ZrwWJjAqGcRJ2hg

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

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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EE57D595 = "C:\\Users\\Admin\\AppData\\Roaming\\EE57D595\\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/4596-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
700	904	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	703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
904	winver.exe
904	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
904	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4596 wrote to memory of 904	4596	703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe	83
PID 4596 wrote to memory of 904	4596	703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe	83
PID 4596 wrote to memory of 904	4596	703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe	83
PID 4596 wrote to memory of 904	4596	703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe	83
PID 904 wrote to memory of 3424	904	winver.exe	56
PID 904 wrote to memory of 2728	904	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2728

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe
  "C:\Users\Admin\AppData\Local\Temp\703de1f8c58504b368f1f460f7a340ff25795a89c235c8951d748898636d08a5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4596
- - 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:904
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 352
      4⤵
      Program crash
      PID:700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 904 -ip 904
1⤵
PID:4668

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/904-5-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/904-15-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/904-12-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/904-7-0x00007FF88C1D0000-0x00007FF88C3C5000-memory.dmp

Filesize
2.0MB

Download
memory/2728-14-0x00000000009D0000-0x00000000009D6000-memory.dmp

Filesize
24KB

Download
memory/3424-2-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/3424-6-0x00007FF88C26D000-0x00007FF88C26E000-memory.dmp

Filesize
4KB

Download
memory/3424-3-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/4596-4-0x00000000020B0000-0x0000000002AB0000-memory.dmp

Filesize
10.0MB

Download
memory/4596-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4596-10-0x00000000020B0000-0x0000000002AB0000-memory.dmp

Filesize
10.0MB

Download
memory/4596-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4596-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download