tinba | 71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77

Analysis

max time kernel
119s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 01:22

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General

Target

71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe
Size

45KB
MD5

d5e6f80349e5bf68296fe4d4ec3259a0
SHA1

54020e6fceab645f0be0c3d6a4bad3ac6d9e1da4
SHA256

71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77
SHA512

dc872764e0d424cc9d80d43a6e58e3a1a9bd122f9e91f1eea0af08f1a7301be4e1f815d34f6c815c4fc213d11d7675255e93cfa54cf0bac9897bf6311fd32a7f
SSDEEP

768:4hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:EsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EACADCA2 = "C:\\Users\\Admin\\AppData\\Roaming\\EACADCA2\\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/4564-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5044	672	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	71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
672	winver.exe
672	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
672	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 672	4564	71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe	83
PID 4564 wrote to memory of 672	4564	71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe	83
PID 4564 wrote to memory of 672	4564	71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe	83
PID 4564 wrote to memory of 672	4564	71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe	83
PID 672 wrote to memory of 3396	672	winver.exe	56
PID 672 wrote to memory of 2924	672	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2924

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3396
- C:\Users\Admin\AppData\Local\Temp\71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe
  "C:\Users\Admin\AppData\Local\Temp\71df8712dcffb97924958e8021d1877f94890e4817961ec74b79c20decccbf77N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4564
- - 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:672
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 672 -s 352
      4⤵
      Program crash
      PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 672 -ip 672
1⤵
PID:3260

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/672-11-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download
memory/672-14-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download
memory/672-5-0x0000000077422000-0x0000000077423000-memory.dmp

Filesize
4KB

Download
memory/672-7-0x00007FFACB170000-0x00007FFACB365000-memory.dmp

Filesize
2.0MB

Download
memory/2924-13-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3396-2-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/3396-3-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/3396-6-0x00007FFACB20D000-0x00007FFACB20E000-memory.dmp

Filesize
4KB

Download
memory/4564-4-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/4564-9-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/4564-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4564-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4564-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download