tinba | 0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1

Analysis

max time kernel
146s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 04:49

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General

Target

0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe
Size

110KB
MD5

87806df056ec8b2f8649b5bde1e0cbaa
SHA1

e2882359002da0c0f439bc3c37de755fd93ad4c7
SHA256

0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1
SHA512

3e7ce10f4dde4c17e3a12cfd8823f44f6d5cc70ccea500902dbe47ce7df76352acd987f103076378404b7de3ac5530d4d9d05164dca46016f2f56609eeb90850
SSDEEP

1536:OiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:OiyvRmDLs/ZrwWJjAqGcRJ2hA

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\865C3EA6 = "C:\\Users\\Admin\\AppData\\Roaming\\865C3EA6\\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/1596-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1528	4512	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	0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4512	winver.exe
4512	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4512	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 4512	1596	0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe	83
PID 1596 wrote to memory of 4512	1596	0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe	83
PID 1596 wrote to memory of 4512	1596	0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe	83
PID 1596 wrote to memory of 4512	1596	0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe	83
PID 4512 wrote to memory of 3484	4512	winver.exe	56
PID 4512 wrote to memory of 2604	4512	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2604

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3484
- C:\Users\Admin\AppData\Local\Temp\0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe
  "C:\Users\Admin\AppData\Local\Temp\0731a603c6a03a4deae745788e7c1dcab41eba41caff3c311bbacdc86f1569e1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1596
- - 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:4512
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 352
      4⤵
      Program crash
      PID:1528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4512 -ip 4512
1⤵
PID:1100

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/1596-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1596-1-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download
memory/1596-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1596-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/1596-10-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/2604-14-0x00000000009A0000-0x00000000009A6000-memory.dmp

Filesize
24KB

Download
memory/3484-3-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/3484-7-0x00007FFDB7C8D000-0x00007FFDB7C8E000-memory.dmp

Filesize
4KB

Download
memory/3484-2-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/4512-5-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/4512-8-0x00007FFDB7BF0000-0x00007FFDB7DE5000-memory.dmp

Filesize
2.0MB

Download
memory/4512-6-0x0000000077502000-0x0000000077503000-memory.dmp

Filesize
4KB

Download
memory/4512-15-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download