tinba | 4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459

Analysis

max time kernel
135s
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
05-12-2024 19:10

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General

Target

4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe
Size

89KB
MD5

90bdfee1dc856db64249858310df8e63
SHA1

2ad45783ccba852974980dc995bd0b7871338190
SHA256

4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459
SHA512

5a658a55dd5ab6206e2b3d7434d1b86ccf7b91d8fafeb85bb4c9c7d8aca499f5023c4a2c371c7bdb5fe419772f355dad55751bfa92a4feb4dc0f4b0578c8a5c2
SSDEEP

1536:k1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7a:g+4MJIkLZJNAQ9Jo9a

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\6C80A0D8 = "C:\\Users\\Admin\\AppData\\Roaming\\6C80A0D8\\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/2000-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1928	2596	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	4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2596	winver.exe
2596	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2596	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2596	2000	4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe	83
PID 2000 wrote to memory of 2596	2000	4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe	83
PID 2000 wrote to memory of 2596	2000	4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe	83
PID 2000 wrote to memory of 2596	2000	4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe	83
PID 2596 wrote to memory of 3448	2596	winver.exe	56
PID 2596 wrote to memory of 2664	2596	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2664

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3448
- C:\Users\Admin\AppData\Local\Temp\4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe
  "C:\Users\Admin\AppData\Local\Temp\4775c82ff7ad36ca2d1608b0ce3a6b81eec502b7515e9eb2f50c09678c253459.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2000
- - 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:2596
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 352
      4⤵
      Program crash
      PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2596 -ip 2596
1⤵
PID:2388

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

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Downloads

memory/2000-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2000-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2000-9-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/2000-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2000-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/2596-5-0x0000000077932000-0x0000000077933000-memory.dmp

Filesize
4KB

Download
memory/2596-7-0x00007FFF33470000-0x00007FFF33665000-memory.dmp

Filesize
2.0MB

Download
memory/2596-11-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/2596-14-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/2664-13-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/3448-6-0x00007FFF3350D000-0x00007FFF3350E000-memory.dmp

Filesize
4KB

Download
memory/3448-3-0x0000000000D90000-0x0000000000D96000-memory.dmp

Filesize
24KB

Download
memory/3448-2-0x0000000000D90000-0x0000000000D96000-memory.dmp

Filesize
24KB

Download