tinba | 21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035f

Analysis

max time kernel
110s
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
29-11-2024 18:17

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General

Target

21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe
Size

110KB
MD5

a6a03f06584e1eeacbfdbade24b970d0
SHA1

cb4a94864751402471fd57621686e18b012c7ec0
SHA256

21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035f
SHA512

5ff83f7e7ba3ca3e84d58b156dd787a3351130fe147d5c224ea779277f56003e89e750d546524962ac8ce9555d3813f2c9c69c8dc2559aef656a43561de9a200
SSDEEP

1536:QiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:QiyvRmDLs/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
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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\822934A6 = "C:\\Users\\Admin\\AppData\\Roaming\\822934A6\\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/3564-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
924	1288	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	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1288	winver.exe
1288	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3512	Explorer.EXE
Token: SeCreatePagefilePrivilege	3512	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1288	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1288	3564	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	83
PID 3564 wrote to memory of 1288	3564	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	83
PID 3564 wrote to memory of 1288	3564	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	83
PID 3564 wrote to memory of 1288	3564	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	83
PID 1288 wrote to memory of 3512	1288	winver.exe	56
PID 1288 wrote to memory of 2620	1288	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2620

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3512
- C:\Users\Admin\AppData\Local\Temp\21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe
  "C:\Users\Admin\AppData\Local\Temp\21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3564
- - 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:1288
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 352
      4⤵
      Program crash
      PID:924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1288 -ip 1288
1⤵
PID:1144

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/1288-5-0x0000000077A02000-0x0000000077A03000-memory.dmp

Filesize
4KB

Download
memory/1288-14-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/1288-11-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/1288-7-0x00007FF8463D0000-0x00007FF8465C5000-memory.dmp

Filesize
2.0MB

Download
memory/2620-13-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3512-6-0x00007FF84646D000-0x00007FF84646E000-memory.dmp

Filesize
4KB

Download
memory/3512-3-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

Filesize
24KB

Download
memory/3512-2-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

Filesize
24KB

Download
memory/3564-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3564-4-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/3564-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3564-9-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/3564-1-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download