tinba | 3b561264906f1c7cdae34d4b8d4467a76e5f49b48863a6ef140b4f5d0a860665

Analysis

max time kernel
7s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 02:41

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General

Target
008a3c8140ee60accd92226ae42e19f4.exe
Size 160KB
Sample231225-c6hmmsccbk
SHA256 3b561264906f1c7cdae34d4b8d4467a76e5f49b48863a6ef140b4f5d0a860665
MD5 008a3c8140ee60accd92226ae42e19f4
SHA1 9d98fe54dc9e9281be0f8d2f81cc57e4b8b90a59
SHA512 45441da8f43fb84af4ae93d4c18e17c60c26410eb3caf8e5fe34ed20aa45302e70d64d20cc44797efb582ef2bfccc57493b0769245ab9c967bca650141d7fbe8
SSDEEP 1536:kEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:XY+4MiIkLZJNAQ9J6v
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/436-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6B77E3D2 = "C:\\Users\\Admin\\AppData\\Roaming\\6B77E3D2\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4900	2956	WerFault.exe	23

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2956	winver.exe
2956	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2956	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 2956	436	008a3c8140ee60accd92226ae42e19f4.exe	23
PID 436 wrote to memory of 2956	436	008a3c8140ee60accd92226ae42e19f4.exe	23
PID 436 wrote to memory of 2956	436	008a3c8140ee60accd92226ae42e19f4.exe	23
PID 436 wrote to memory of 2956	436	008a3c8140ee60accd92226ae42e19f4.exe	23
PID 2956 wrote to memory of 3460	2956	winver.exe	50
PID 2956 wrote to memory of 2656	2956	winver.exe	57

C:\Users\Admin\AppData\Local\Temp\008a3c8140ee60accd92226ae42e19f4.exe
"C:\Users\Admin\AppData\Local\Temp\008a3c8140ee60accd92226ae42e19f4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:436
- C:\Windows\SysWOW64\winver.exe
  winver
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 352
    3⤵
    - Program crash
    PID:4900

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 2956 -ip 2956
1⤵
PID:1276

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/436-9-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/436-0-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/436-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Download

memory/436-10-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Download

memory/436-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

Download

memory/2656-14-0x0000000000780000-0x0000000000786000-memory.dmp

Download

memory/2956-15-0x00000000029D0000-0x00000000029D6000-memory.dmp

Download

memory/2956-7-0x00000000029D0000-0x00000000029D6000-memory.dmp

Download

memory/2956-5-0x0000000077132000-0x0000000077133000-memory.dmp

Download

memory/3460-6-0x00007FFF1742D000-0x00007FFF1742E000-memory.dmp

Download

memory/3460-3-0x0000000000510000-0x0000000000516000-memory.dmp

Download

memory/3460-8-0x00007FFF175C0000-0x00007FFF175C1000-memory.dmp

Download

memory/3460-2-0x0000000000510000-0x0000000000516000-memory.dmp

Download