tinba | a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241

Analysis

max time kernel
113s
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
12-01-2025 04:18

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General

Target

a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe
Size

45KB
MD5

e51acc7d6b0b6b7691ddf5658c366400
SHA1

00b7d503c8d95b7084872bb3348e9a3a81e265ee
SHA256

a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241
SHA512

1003b00de5a07c49d44e16d7d369bd8bcffe52ce161df228ac4696d59e0f1838781a2885b672320ba8b0bb29dfb7c03c91b3c799f841dc4fc7b4cc0c09c161f8
SSDEEP

768:GhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2X:KsWE9N5dFu53dsniQaB/xZ14n7zIF+qD

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9F846669 = "C:\\Users\\Admin\\AppData\\Roaming\\9F846669\\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/3852-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4376	2284	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	a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2284	winver.exe
2284	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2284	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 2284	3852	a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe	83
PID 3852 wrote to memory of 2284	3852	a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe	83
PID 3852 wrote to memory of 2284	3852	a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe	83
PID 3852 wrote to memory of 2284	3852	a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe	83
PID 2284 wrote to memory of 3416	2284	winver.exe	56
PID 2284 wrote to memory of 2568	2284	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2568

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3416
- C:\Users\Admin\AppData\Local\Temp\a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe
  "C:\Users\Admin\AppData\Local\Temp\a2c79f7508564ac00346d22e3206048a18f6caa9aa3a629255749eac81c27241N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3852
- - 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:2284
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 352
      4⤵
      Program crash
      PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2284 -ip 2284
1⤵
PID:2932

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/2284-5-0x0000000077642000-0x0000000077643000-memory.dmp

Filesize
4KB

Download
memory/2284-14-0x0000000002540000-0x0000000002546000-memory.dmp

Filesize
24KB

Download
memory/2284-11-0x0000000002540000-0x0000000002546000-memory.dmp

Filesize
24KB

Download
memory/2284-7-0x00007FF805370000-0x00007FF805565000-memory.dmp

Filesize
2.0MB

Download
memory/2568-13-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Filesize
24KB

Download
memory/3416-2-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/3416-6-0x00007FF80540D000-0x00007FF80540E000-memory.dmp

Filesize
4KB

Download
memory/3416-3-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/3852-4-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/3852-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3852-9-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/3852-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3852-1-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download