d3a32f2258bd5eff952576259dd78a6e73f56d52d07783d4fbc3ffd966549950

General

Target

mal.exe
Size

483KB
MD5

1f1dbf12b048ad53ceb7b62a1af1d60b
SHA1

7843bc1228e3037ce39aab2710edf006cdddd919
SHA256

d3a32f2258bd5eff952576259dd78a6e73f56d52d07783d4fbc3ffd966549950
SHA512

2d263fecec7680c9647a8217561e6c61aa552c74978970d8cd132c29a3298eaa7b240cbd96e397683d81c4857fc95748389dc744a43d560642962877a5695f09
SSDEEP

6144:QTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccrJT4:QTlrYw1RUh3NFn+N5WfIQIjbs/ZBuT4

Score

9^/10

collection credential_access discovery spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 9 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2660-7-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2160-10-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2788-14-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2788-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2660-9-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2788-18-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2160-8-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2660-23-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2160-26-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2160-10-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2160-8-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2160-26-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2660-7-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2660-9-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2660-23-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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 accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	mal.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 2660	2204	mal.exe	32
PID 2204 set thread context of 2160	2204	mal.exe	33
PID 2204 set thread context of 2788	2204	mal.exe	34

System Location Discovery: System Language Discovery 1 TTPs 4 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	mal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mal.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2660	mal.exe
2660	mal.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2204	mal.exe
2204	mal.exe
2204	mal.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	mal.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2660	2204	mal.exe	32
PID 2204 wrote to memory of 2660	2204	mal.exe	32
PID 2204 wrote to memory of 2660	2204	mal.exe	32
PID 2204 wrote to memory of 2660	2204	mal.exe	32
PID 2204 wrote to memory of 2160	2204	mal.exe	33
PID 2204 wrote to memory of 2160	2204	mal.exe	33
PID 2204 wrote to memory of 2160	2204	mal.exe	33
PID 2204 wrote to memory of 2160	2204	mal.exe	33
PID 2204 wrote to memory of 2788	2204	mal.exe	34
PID 2204 wrote to memory of 2788	2204	mal.exe	34
PID 2204 wrote to memory of 2788	2204	mal.exe	34
PID 2204 wrote to memory of 2788	2204	mal.exe	34

C:\Users\Admin\AppData\Local\Temp\mal.exe
"C:\Users\Admin\AppData\Local\Temp\mal.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\mal.exe
  C:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\tfijznhzirftldma"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2660
- C:\Users\Admin\AppData\Local\Temp\mal.exe
  C:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\ehncafstezxywjiewpv"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Users\Admin\AppData\Local\Temp\mal.exe
  C:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\gctubycushplyxwqnahlfth"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tfijznhzirftldma

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2160-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2160-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2160-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2160-26-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2160-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2204-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2204-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2204-28-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2660-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2660-4-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2660-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2660-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2660-9-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2788-18-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2788-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2788-16-0x0000000000430000-0x0000000000497000-memory.dmp

Filesize
412KB

Download
memory/2788-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2788-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2788-14-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

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