tinba | b793758547c3b10de50b7083faea4986af5bceda03d05a0788cc58024e22694b

Analysis

max time kernel
130s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 00:45

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General

Target

27ee51008c367487617a406a1dde067b_JaffaCakes118.exe
Size

160KB
MD5

27ee51008c367487617a406a1dde067b
SHA1

ddcafd656d35b545190f1eb744e70e03988c4de0
SHA256

b793758547c3b10de50b7083faea4986af5bceda03d05a0788cc58024e22694b
SHA512

f2cd90abc5f3e4b9b36d73f368ef2a1b11c78d4addd7c021b3c5c9bff0682808180030d8c8498ab81df40c6a67bac36fcaf014de358ca23bee1f71cf1da2116a
SSDEEP

1536:YEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:bY+4MiIkLZJNAQ9J6v

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

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F58EF9A6 = "C:\\Users\\Admin\\AppData\\Roaming\\F58EF9A6\\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/2176-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1484	1944	WerFault.exe	86

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	27ee51008c367487617a406a1dde067b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1944	winver.exe
1944	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1944	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3520	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 1944	2176	27ee51008c367487617a406a1dde067b_JaffaCakes118.exe	86
PID 2176 wrote to memory of 1944	2176	27ee51008c367487617a406a1dde067b_JaffaCakes118.exe	86
PID 2176 wrote to memory of 1944	2176	27ee51008c367487617a406a1dde067b_JaffaCakes118.exe	86
PID 2176 wrote to memory of 1944	2176	27ee51008c367487617a406a1dde067b_JaffaCakes118.exe	86
PID 1944 wrote to memory of 3520	1944	winver.exe	56
PID 1944 wrote to memory of 2496	1944	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2496

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3520
- C:\Users\Admin\AppData\Local\Temp\27ee51008c367487617a406a1dde067b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\27ee51008c367487617a406a1dde067b_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2176
- - 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:1944
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 352
      4⤵
      Program crash
      PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1944 -ip 1944
1⤵
PID:1332

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/1944-5-0x0000000077362000-0x0000000077363000-memory.dmp

Filesize
4KB

Download
memory/1944-14-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/1944-11-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/1944-7-0x00007FFD56030000-0x00007FFD56225000-memory.dmp

Filesize
2.0MB

Download
memory/2176-9-0x00000000020F0000-0x0000000002AF0000-memory.dmp

Filesize
10.0MB

Download
memory/2176-4-0x00000000020F0000-0x0000000002AF0000-memory.dmp

Filesize
10.0MB

Download
memory/2176-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2176-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2176-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2496-13-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3520-6-0x00007FFD560CD000-0x00007FFD560CE000-memory.dmp

Filesize
4KB

Download
memory/3520-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3520-16-0x00007FFD56260000-0x00007FFD56261000-memory.dmp

Filesize
4KB

Download