997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2

General

Target

download.exe
Size

483KB
MD5

b0b179cb58814287051a3933455c382e
SHA1

23bb06299fe32cc15786f9b79c22e5d7af50802a
SHA256

997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2
SHA512

6c0c6fbd544517b05e17cdd15e64698df5683b51a9fc79dfe51e18c62202d2d45626ba41e6c9b7b7ae507ce474c948f501971815afa6accc81b4268afafb11c9
SSDEEP

6144:RTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZmAX4crgWT4:RTlrYw1RUh3NFn+N5WfIQIjbs/ZmgT4

Score

9^/10

collection discovery spyware stealer

Malware Config

Signatures

Detected Nirsoft tools 9 IoCs

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

resource	yara_rule
behavioral1/memory/2656-7-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2768-18-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2768-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2656-11-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2756-10-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2656-9-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2756-8-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2656-23-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2756-10-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2756-8-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 4 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2656-7-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2656-11-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2656-9-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2656-23-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	download.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2400 set thread context of 2656	2400	download.exe	30
PID 2400 set thread context of 2756	2400	download.exe	31
PID 2400 set thread context of 2768	2400	download.exe	32

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	download.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	download.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	download.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	download.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2656	download.exe
2656	download.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2400	download.exe
2400	download.exe
2400	download.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2768	download.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2400	download.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2656	2400	download.exe	30
PID 2400 wrote to memory of 2656	2400	download.exe	30
PID 2400 wrote to memory of 2656	2400	download.exe	30
PID 2400 wrote to memory of 2656	2400	download.exe	30
PID 2400 wrote to memory of 2756	2400	download.exe	31
PID 2400 wrote to memory of 2756	2400	download.exe	31
PID 2400 wrote to memory of 2756	2400	download.exe	31
PID 2400 wrote to memory of 2756	2400	download.exe	31
PID 2400 wrote to memory of 2768	2400	download.exe	32
PID 2400 wrote to memory of 2768	2400	download.exe	32
PID 2400 wrote to memory of 2768	2400	download.exe	32
PID 2400 wrote to memory of 2768	2400	download.exe	32

C:\Users\Admin\AppData\Local\Temp\download.exe
"C:\Users\Admin\AppData\Local\Temp\download.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\download.exe
  C:\Users\Admin\AppData\Local\Temp\download.exe /stext "C:\Users\Admin\AppData\Local\Temp\vvtzvpsodwtbsenl"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2656
- C:\Users\Admin\AppData\Local\Temp\download.exe
  C:\Users\Admin\AppData\Local\Temp\download.exe /stext "C:\Users\Admin\AppData\Local\Temp\fpykohdpreloukjxppwe"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\download.exe
  C:\Users\Admin\AppData\Local\Temp\download.exe /stext "C:\Users\Admin\AppData\Local\Temp\psdcpsnjfmdseqxbgajyxxm"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2768

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\notpad0\logs.dat

Filesize
144B

MD5
2b58a315dc093bd174a124906f4d356e

SHA1
1defd3f159ee1edd5c7fda5552e330a304ede7d5

SHA256
832112cfb5ed1a3a7f9f252caf7b2976d2f66bb4cb1895e209a50fab92047d9c

SHA512
1cc2452b1ae759757fbea89780616f7d8ada32f401883289d35631ebaeb99f32dd5ccb32514c81760a4ac908c34fea2421c379bf676cce66c09cba0f9164e5d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\notpad0\logs.dat

Filesize
230B

MD5
2048adca6d96f2035d006bc698e47f4a

SHA1
db30bafe68054cea0ea7f181e1df6de1c67232f1

SHA256
218f7043ae42c5da1b1ee8124d7392c5adc89dcf4bd663b6664c08df09343ed0

SHA512
cce66a54c13a0977b29b9b77ce77dc4a5bbeb2ea0ab561e695fed2acac53fef6bd0f97e2cc35f7c01713e88f127a3a95896dcebbc6226fd92e85a3b7bb857c7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvtzvpsodwtbsenl

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2400-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2400-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2400-29-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2656-4-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2656-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2656-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2656-9-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2656-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2656-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2756-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2756-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2756-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2756-27-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2756-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2768-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2768-14-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2768-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2768-18-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

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