tinba | 939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9

Analysis

max time kernel
146s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23/11/2024, 04:42

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General

Target
939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe
Size 34KB
Sample241123-fb6b1aylhs
SHA256 939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9
MD5 9f62652c1fb61ca6a43a210deb969749
SHA1 af8428e45e7985f9b8f7c77718de14bc93601e0f
SHA512 4ec805e3ee4a911831332fe896e0edb45b34e35bc351e8ee96bd16fd1c716bd0c4cdc8d87b2aab494e41af1c13e6879e674f0add1081ae903981f721686d5957
SSDEEP 768:4p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9JS:4pYoX58z1uirL98xMWnT0OQ9JS
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7C2C2E3A = "C:\\Users\\Admin\\AppData\\Roaming\\7C2C2E3A\\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/4184-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4872	2436	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	939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2436	winver.exe
2436	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
2436	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 2436	4184	939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe	83
PID 4184 wrote to memory of 2436	4184	939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe	83
PID 4184 wrote to memory of 2436	4184	939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe	83
PID 4184 wrote to memory of 2436	4184	939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe	83
PID 2436 wrote to memory of 3520	2436	winver.exe	56
PID 2436 wrote to memory of 2448	2436	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2448

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520
- C:\Users\Admin\AppData\Local\Temp\939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe
  "C:\Users\Admin\AppData\Local\Temp\939d20a3a11b654015dae2179a0e91104b2dd5be3caefd99840eca9cec5dd4f9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4184
- - 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:2436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 352
      4⤵
      Program crash
      PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2436 -ip 2436
1⤵
PID:212

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

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Downloads

memory/2436-5-0x00000000776F2000-0x00000000776F3000-memory.dmp

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memory/2436-15-0x0000000002930000-0x0000000002936000-memory.dmp

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memory/2436-12-0x0000000002930000-0x0000000002936000-memory.dmp

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memory/2436-8-0x00007FF9BE610000-0x00007FF9BE805000-memory.dmp

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memory/2448-14-0x00000000007A0000-0x00000000007A6000-memory.dmp

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memory/3520-6-0x00007FF9BE6AD000-0x00007FF9BE6AE000-memory.dmp

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memory/3520-7-0x00007FF9BE6AC000-0x00007FF9BE6AD000-memory.dmp

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memory/3520-3-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

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memory/3520-2-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

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memory/4184-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4184-4-0x0000000002210000-0x0000000002C10000-memory.dmp

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memory/4184-9-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4184-10-0x0000000002210000-0x0000000002C10000-memory.dmp

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memory/4184-1-0x0000000002020000-0x0000000002021000-memory.dmp

Download