a8592530826bffe4e397e6f53054c366cef50d567bc9f54ddb4c4a960cb21537

General

Target

DIAGRAM.exe
Size

666KB
MD5

4f356846f7030367803453f210306628
SHA1

960fa757fdb7f628facb24b8b686f20c2fa79382
SHA256

f7cc73c4bd3b43e1c4be82c8ea43d8db9bd170acc78031e83f8c71277a2d8990
SHA512

7ff8bda0b221bacb3b9c1d9e41e7331374963d51f4e96dcde3e99d477aef8c8d2985144110313415c624bd5c8e48188ac81456396748b1d549a19b68aff9ab86

Score

9^/10

collection evasion

Malware Config

Signatures

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

NirSoft MailPassView 10 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/1212-63-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/1212-65-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/1212-66-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/1212-67-0x0000000000480BEE-mapping.dmp	MailPassView
behavioral1/memory/1212-69-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/1212-71-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/860-75-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/860-76-0x0000000000411654-mapping.dmp	MailPassView
behavioral1/memory/860-79-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/860-80-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 10 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1212-63-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/1212-65-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/1212-66-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/1212-67-0x0000000000480BEE-mapping.dmp	WebBrowserPassView
behavioral1/memory/1212-69-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/1212-71-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/1504-81-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/1504-82-0x0000000000442628-mapping.dmp	WebBrowserPassView
behavioral1/memory/1504-85-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/1504-86-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView

Nirsoft 14 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1212-63-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/1212-65-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/1212-66-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/1212-67-0x0000000000480BEE-mapping.dmp	Nirsoft
behavioral1/memory/1212-69-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/1212-71-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/860-75-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/860-76-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/860-79-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/860-80-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1504-81-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/1504-82-0x0000000000442628-mapping.dmp	Nirsoft
behavioral1/memory/1504-85-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/1504-86-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

DIAGRAM.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DIAGRAM.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DIAGRAM.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 whatismyipaddress.com
6 whatismyipaddress.com

flow	ioc
4	whatismyipaddress.com
6	whatismyipaddress.com

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

DIAGRAM.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	DIAGRAM.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	DIAGRAM.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

DIAGRAM.exeMSBuild.exe

description	pid	process	target process
PID 1656 set thread context of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1212 set thread context of 860	1212	MSBuild.exe	vbc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1320 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

DIAGRAM.exe

pid process

1656 DIAGRAM.exe
1656 DIAGRAM.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DIAGRAM.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1656 DIAGRAM.exe
Token: SeDebugPrivilege 1212 MSBuild.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

1212 MSBuild.exe

pid	process
1320	schtasks.exe

pid	process
1656	DIAGRAM.exe
1656	DIAGRAM.exe

description	pid	process
Token: SeDebugPrivilege	1656	DIAGRAM.exe
Token: SeDebugPrivilege	1212	MSBuild.exe

pid	process
1212	MSBuild.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

DIAGRAM.exeMSBuild.exe

description	pid	process	target process
PID 1656 wrote to memory of 1320	1656	DIAGRAM.exe	schtasks.exe
PID 1656 wrote to memory of 1320	1656	DIAGRAM.exe	schtasks.exe
PID 1656 wrote to memory of 1320	1656	DIAGRAM.exe	schtasks.exe
PID 1656 wrote to memory of 1320	1656	DIAGRAM.exe	schtasks.exe
PID 1656 wrote to memory of 568	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 568	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 568	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 568	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1656 wrote to memory of 1212	1656	DIAGRAM.exe	MSBuild.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe
PID 1212 wrote to memory of 860	1212	MSBuild.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\DIAGRAM.exe
"C:\Users\Admin\AppData\Local\Temp\DIAGRAM.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NurSHgGUQC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5236.tmp"
2⤵
- Creates scheduled task(s)
PID:1320

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
PID:568

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
3⤵
- Accesses Microsoft Outlook accounts
PID:860

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
3⤵
PID:1504

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Scripting

1

T1064

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\holderwb.txt
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5236.tmp
Filesize
1KB

MD5
eff58a225b2bf9586605608ddad976d9

SHA1
7e6a0852bb20d994627b509d46b259a6a0401e1c

SHA256
d3d5caec336aeb569a6ca43991b6e3e8a92e38b6c14cab10a5c89d37dd2bcd24

SHA512
216f3cd0abb6b4b95ee34946a636a4e4481a8f9ac3d73f23079fe67364cb4842f83f4009577bd4c4ad36a2d28cdfac7ebe509b855707718a678f147a6e72901b

Download Submit
memory/860-75-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/860-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/860-79-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/860-76-0x0000000000411654-mapping.dmp

Download
memory/1212-60-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-74-0x00000000004C0000-0x00000000004C8000-memory.dmp

Filesize
32KB

Download
memory/1212-63-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-65-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-66-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-67-0x0000000000480BEE-mapping.dmp

Download
memory/1212-69-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-71-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1212-73-0x0000000000DE5000-0x0000000000DF6000-memory.dmp

Filesize
68KB

Download
memory/1212-61-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1320-58-0x0000000000000000-mapping.dmp

Download
memory/1504-81-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1504-82-0x0000000000442628-mapping.dmp

Download
memory/1504-85-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1504-86-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1656-54-0x00000000003A0000-0x000000000044E000-memory.dmp

Filesize
696KB

Download
memory/1656-57-0x0000000005270000-0x0000000005300000-memory.dmp

Filesize
576KB

Download
memory/1656-56-0x0000000000330000-0x0000000000338000-memory.dmp

Filesize
32KB

Download
memory/1656-55-0x00000000765C1000-0x00000000765C3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads