tinba | aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1f

Analysis

max time kernel
108s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 10:15

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General

Target

aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe
Size

45KB
MD5

87f85dda4e20c798b274d935cba399f0
SHA1

f94f3c2df480f08d26dcce80ac61a72cc858ae41
SHA256

aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1f
SHA512

2b473bf9c49b02085aea168f1f54a1e6aefc47f57a03fa6f2beb2c170836dbcdda75c7871372a0f42a6658b503dcab8523a316c3611f07837c85cba391166d16
SSDEEP

768:ahP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:WsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5699F86F = "C:\\Users\\Admin\\AppData\\Roaming\\5699F86F\\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/4028-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3344	1448	WerFault.exe	84

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	aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1448	winver.exe
1448	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1448	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 1448	4028	aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe	84
PID 4028 wrote to memory of 1448	4028	aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe	84
PID 4028 wrote to memory of 1448	4028	aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe	84
PID 4028 wrote to memory of 1448	4028	aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe	84
PID 1448 wrote to memory of 3540	1448	winver.exe	56
PID 1448 wrote to memory of 2568	1448	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:3540
- C:\Users\Admin\AppData\Local\Temp\aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe
  "C:\Users\Admin\AppData\Local\Temp\aed33262a96a42f95cdf8e730734c3e984b0b789855e05d40cd23d00bcbead1fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4028
- - 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:1448
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 352
      4⤵
      Program crash
      PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1448 -ip 1448
1⤵
PID:4468

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/1448-5-0x00000000014C0000-0x00000000014C6000-memory.dmp

Filesize
24KB

Download
memory/1448-15-0x00000000014C0000-0x00000000014C6000-memory.dmp

Filesize
24KB

Download
memory/1448-8-0x00007FF81CA50000-0x00007FF81CC45000-memory.dmp

Filesize
2.0MB

Download
memory/2568-14-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/3540-6-0x00007FF81CAED000-0x00007FF81CAEE000-memory.dmp

Filesize
4KB

Download
memory/3540-7-0x00007FF81CAEC000-0x00007FF81CAED000-memory.dmp

Filesize
4KB

Download
memory/3540-3-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/3540-4-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/4028-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4028-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4028-10-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/4028-2-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/4028-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download