tinba | dd9b89b0ec77a8328de055f8fb55551a325ad67e30d53a7d4b5631f311a8e481

Analysis

max time kernel
41s
max time network
114s
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, 16:04

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General

Target
e18faa0381c3f7629c49457e4bc77c93.exe
Size 34KB
Sample231220-thwysshdc4
SHA256 dd9b89b0ec77a8328de055f8fb55551a325ad67e30d53a7d4b5631f311a8e481
MD5 e18faa0381c3f7629c49457e4bc77c93
SHA1 dd7727d44c93570248a215ff8f80f4491ff17952
SHA512 cb8e34e80d2994cce2880d57f51895ae879fa191fdecc8e2da4ae551220e4f011a19cbad8f697c2e6c8e38fbf16d7d750948c08a4f296736f572a595ad94b33b
SSDEEP 768:Bp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:BpYoX58z1uirL98xMWnT0OQ9J2
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/2736-0-0x0000000000400000-0x0000000000417000-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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CA3936C2 = "C:\\Users\\Admin\\AppData\\Roaming\\CA3936C2\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	1644	WerFault.exe	19

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1644	winver.exe
1644	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1644	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 1644	2736	e18faa0381c3f7629c49457e4bc77c93.exe	19
PID 2736 wrote to memory of 1644	2736	e18faa0381c3f7629c49457e4bc77c93.exe	19
PID 2736 wrote to memory of 1644	2736	e18faa0381c3f7629c49457e4bc77c93.exe	19
PID 2736 wrote to memory of 1644	2736	e18faa0381c3f7629c49457e4bc77c93.exe	19
PID 1644 wrote to memory of 3408	1644	winver.exe	52
PID 1644 wrote to memory of 2760	1644	winver.exe	59

C:\Users\Admin\AppData\Local\Temp\e18faa0381c3f7629c49457e4bc77c93.exe
"C:\Users\Admin\AppData\Local\Temp\e18faa0381c3f7629c49457e4bc77c93.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2736
- 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:1644
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1644 -s 352
    3⤵
    - Program crash
    PID:4456

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1644 -ip 1644
1⤵
PID:2852

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/1644-7-0x0000000000F20000-0x0000000000F26000-memory.dmp

Download

memory/1644-5-0x0000000077042000-0x0000000077043000-memory.dmp

Download

memory/1644-14-0x0000000000F20000-0x0000000000F26000-memory.dmp

Download

memory/2736-9-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Download

memory/2736-4-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Download

memory/2736-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2736-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

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memory/2736-8-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2760-13-0x00000000007E0000-0x00000000007E6000-memory.dmp

Download

memory/3408-6-0x00007FFA8290D000-0x00007FFA8290E000-memory.dmp

Download

memory/3408-2-0x0000000002570000-0x0000000002576000-memory.dmp

Download

memory/3408-3-0x0000000002570000-0x0000000002576000-memory.dmp

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memory/3408-16-0x00007FFA82AA0000-0x00007FFA82AA1000-memory.dmp

Download

memory/3408-17-0x00007FFA82A80000-0x00007FFA82A81000-memory.dmp

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