tinba | a52fb36ac597a825d7697ba3f2105752b789a9275b4d9ead9749fc515a88c20b

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/12/2023, 17:17

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General

Target
f4c3c422833043f1053088012aec1ca6.exe
Size 89KB
Sample231220-vt2h4addfr
SHA256 a52fb36ac597a825d7697ba3f2105752b789a9275b4d9ead9749fc515a88c20b
MD5 f4c3c422833043f1053088012aec1ca6
SHA1 ec09923e600e23ff4475f686693e6c965d8c7ac5
SHA512 bfafe78529864f129790c90204046fd30c0b8be79742fb84e5e90a670737761a5ea1856c95a955f57cde469804dcb0fc6ccf0e7e8eef964bb1708fac0eef11a8
SSDEEP 1536:5r+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:9+4MJIkLZJNAQ9Jo9e
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/1220-0-0x0000000000400000-0x0000000000418000-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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C546C763 = "C:\\Users\\Admin\\AppData\\Roaming\\C546C763\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4688	1152	WerFault.exe	22

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1152	winver.exe
1152	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1152	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3388	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 1152	1220	f4c3c422833043f1053088012aec1ca6.exe	22
PID 1220 wrote to memory of 1152	1220	f4c3c422833043f1053088012aec1ca6.exe	22
PID 1220 wrote to memory of 1152	1220	f4c3c422833043f1053088012aec1ca6.exe	22
PID 1220 wrote to memory of 1152	1220	f4c3c422833043f1053088012aec1ca6.exe	22
PID 1152 wrote to memory of 3388	1152	winver.exe	49
PID 1152 wrote to memory of 2516	1152	winver.exe	60

C:\Users\Admin\AppData\Local\Temp\f4c3c422833043f1053088012aec1ca6.exe
"C:\Users\Admin\AppData\Local\Temp\f4c3c422833043f1053088012aec1ca6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1220
- 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:1152
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 352
    3⤵
    - Program crash
    PID:4688

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3388

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1152 -ip 1152
1⤵
PID:4900

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/1152-15-0x00000000027B0000-0x00000000027B6000-memory.dmp

Download

memory/1152-7-0x00000000027B0000-0x00000000027B6000-memory.dmp

Download

memory/1152-5-0x0000000077482000-0x0000000077483000-memory.dmp

Download

memory/1220-10-0x0000000002050000-0x0000000002A50000-memory.dmp

Download

memory/1220-0-0x0000000000400000-0x0000000000418000-memory.dmp

Download

memory/1220-9-0x0000000000400000-0x0000000000418000-memory.dmp

Download

memory/1220-3-0x0000000002050000-0x0000000002A50000-memory.dmp

Download

memory/1220-1-0x0000000000A10000-0x0000000000A11000-memory.dmp

Download

memory/2516-14-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Download

memory/3388-6-0x00007FF87BDAD000-0x00007FF87BDAE000-memory.dmp

Download

memory/3388-4-0x0000000000400000-0x0000000000406000-memory.dmp

Download

memory/3388-8-0x00007FF87BF40000-0x00007FF87BF41000-memory.dmp

Download

memory/3388-2-0x0000000000400000-0x0000000000406000-memory.dmp

Download