tinba | 09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491e

Analysis

max time kernel
103s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/09/2024, 06:57

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General

Target

09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe
Size

89KB
MD5

3cd3a51a7bee286679616131d477e560
SHA1

fe0bd6da7657f0b4c26a5b7a8ff31a5a457f6ad0
SHA256

09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491e
SHA512

2693a61df58102846364d5769c7d14bbb1b61b7be81ff7ca7e074f9c46036fa2ca25f3ad6b263609dcead118f723360a243f62f42a08b23b095c1565872550ad
SSDEEP

1536:D1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:p+4MJIkLZJNAQ9Jo9e

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1228-0-0x0000000000400000-0x0000000000418000-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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\736DEB15 = "C:\\Users\\Admin\\AppData\\Roaming\\736DEB15\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3384	1248	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	09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1248	winver.exe
1248	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1248	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 1248	1228	09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe	83
PID 1228 wrote to memory of 1248	1228	09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe	83
PID 1228 wrote to memory of 1248	1228	09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe	83
PID 1228 wrote to memory of 1248	1228	09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe	83
PID 1248 wrote to memory of 3568	1248	winver.exe	56
PID 1248 wrote to memory of 2688	1248	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2688

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3568
- C:\Users\Admin\AppData\Local\Temp\09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe
  "C:\Users\Admin\AppData\Local\Temp\09acfae624529c84dc7b521048b9dc27dea871c5be003088b21b73c07be1491eN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1228
- - 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:1248
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1248 -s 356
      4⤵
      Program crash
      PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1248 -ip 1248
1⤵
PID:3304

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/1228-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1228-1-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/1228-10-0x0000000002220000-0x0000000002C20000-memory.dmp

Filesize
10.0MB

Download
memory/1228-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1228-4-0x0000000002220000-0x0000000002C20000-memory.dmp

Filesize
10.0MB

Download
memory/1248-6-0x0000000077912000-0x0000000077913000-memory.dmp

Filesize
4KB

Download
memory/1248-5-0x00000000010E0000-0x00000000010E6000-memory.dmp

Filesize
24KB

Download
memory/1248-8-0x00007FFA2E750000-0x00007FFA2E945000-memory.dmp

Filesize
2.0MB

Download
memory/1248-15-0x00000000010E0000-0x00000000010E6000-memory.dmp

Filesize
24KB

Download
memory/2688-14-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/3568-7-0x00007FFA2E7ED000-0x00007FFA2E7EE000-memory.dmp

Filesize
4KB

Download
memory/3568-2-0x0000000000930000-0x0000000000936000-memory.dmp

Filesize
24KB

Download
memory/3568-3-0x0000000000930000-0x0000000000936000-memory.dmp

Filesize
24KB

Download