e758d7eed6c58b468d4e83295c69a68c013b42e6442e8791797777110f01fa02

Analysis

max time kernel
110s
max time network
111s
platform
windows10_x64
resource
win10v20201028
submitted
17/11/2020, 12:04

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General

Target
9483eb20d4aa20201433502717bd92f1.exe
Size 1.5MB
Sample201117-cbbsphyqej
SHA256 e758d7eed6c58b468d4e83295c69a68c013b42e6442e8791797777110f01fa02
MD5 86968a99b408500e97d14df09bdae3b7
SHA1 3e9293419adf86106c010963b5a29e500f1b308d
SHA512 9b455e800a211b9fd5a24e92ce37249636a5a454cf7ba7238a672d0f63ac2e50efad3279425aa7e2e61ec38e29c8cc74da82a52a6269ceeb4f390b968cafac1e
MD5 SHA1 SHA512

Score

9^/10

evasion

Malware Config

Signatures

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	9483eb20d4aa20201433502717bd92f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9483eb20d4aa20201433502717bd92f1.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	9483eb20d4aa20201433502717bd92f1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	9483eb20d4aa20201433502717bd92f1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 644 set thread context of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81

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

pid	Process
1304	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	9483eb20d4aa20201433502717bd92f1.exe
2820	9483eb20d4aa20201433502717bd92f1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	9483eb20d4aa20201433502717bd92f1.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 1304	644	9483eb20d4aa20201433502717bd92f1.exe	79
PID 644 wrote to memory of 1304	644	9483eb20d4aa20201433502717bd92f1.exe	79
PID 644 wrote to memory of 1304	644	9483eb20d4aa20201433502717bd92f1.exe	79
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81
PID 644 wrote to memory of 2820	644	9483eb20d4aa20201433502717bd92f1.exe	81

C:\Users\Admin\AppData\Local\Temp\9483eb20d4aa20201433502717bd92f1.exe
"C:\Users\Admin\AppData\Local\Temp\9483eb20d4aa20201433502717bd92f1.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oGXypSigrocz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F1D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1304
- C:\Users\Admin\AppData\Local\Temp\9483eb20d4aa20201433502717bd92f1.exe
  "C:\Users\Admin\AppData\Local\Temp\9483eb20d4aa20201433502717bd92f1.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/644-5-0x0000000007010000-0x0000000007011000-memory.dmp

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memory/644-10-0x0000000007460000-0x0000000007499000-memory.dmp

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memory/644-0-0x0000000073F80000-0x000000007466E000-memory.dmp

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memory/644-6-0x0000000006F20000-0x0000000006F21000-memory.dmp

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memory/644-7-0x00000000071D0000-0x00000000071D1000-memory.dmp

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memory/644-8-0x0000000002320000-0x000000000232B000-memory.dmp

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memory/644-9-0x0000000007C80000-0x0000000007CE7000-memory.dmp

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memory/644-4-0x0000000007510000-0x0000000007511000-memory.dmp

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memory/644-11-0x0000000007D60000-0x0000000007D61000-memory.dmp

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memory/644-1-0x00000000000A0000-0x00000000000A1000-memory.dmp

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memory/644-3-0x0000000006F70000-0x0000000006F71000-memory.dmp

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memory/2820-14-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2820-17-0x0000000073F80000-0x000000007466E000-memory.dmp

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memory/2820-22-0x0000000005120000-0x0000000005121000-memory.dmp

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