b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821

Analysis

max time kernel
147s
max time network
149s
platform
windows10_x64
resource
win10v20201028
submitted
13/11/2020, 15:32

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General

Target
b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
Size 569KB
Sample201113-fbbeqk14h2
SHA256 b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821
MD5 66cf0d4e1f5bcba3d37e4a13b8601d92
SHA1 5da09dfc283327b4cb0a32dc0f0a9730a8c923f5
SHA512 e8511c889767493cc48687c9f5822952523abefc97a4e2b3389a8b98b0353e3f65c67df87ad41342007237f7d46e40df32484bc3ca48b543002ecbce275cff9a
MD5 SHA1 SHA512

Score

9^/10

evasion spyware

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	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

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	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1148 set thread context of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82

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
504	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2180	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
2180	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 504	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	80
PID 1148 wrote to memory of 504	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	80
PID 1148 wrote to memory of 504	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	80
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82
PID 1148 wrote to memory of 2180	1148	b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe	82

C:\Users\Admin\AppData\Local\Temp\b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
"C:\Users\Admin\AppData\Local\Temp\b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EaUtTS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp18E8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:504
- C:\Users\Admin\AppData\Local\Temp\b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe
  "C:\Users\Admin\AppData\Local\Temp\b9cdbda14ecde37f1914367130d2aecfd55485dddda99878de9702d53817e821.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180

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

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1148-5-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

Download

memory/1148-11-0x0000000005B80000-0x0000000005B81000-memory.dmp

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memory/1148-7-0x0000000004E60000-0x0000000004E61000-memory.dmp

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memory/1148-6-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

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memory/1148-8-0x0000000004BD0000-0x0000000004BDB000-memory.dmp

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memory/1148-9-0x0000000005A30000-0x0000000005A9D000-memory.dmp

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memory/1148-10-0x0000000005AA0000-0x0000000005AD8000-memory.dmp

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memory/1148-0-0x0000000073450000-0x0000000073B3E000-memory.dmp

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memory/1148-4-0x00000000051A0000-0x00000000051A1000-memory.dmp

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memory/1148-3-0x0000000004C00000-0x0000000004C01000-memory.dmp

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memory/1148-1-0x0000000000300000-0x0000000000301000-memory.dmp

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memory/2180-14-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2180-17-0x0000000073450000-0x0000000073B3E000-memory.dmp

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memory/2180-22-0x00000000059B0000-0x00000000059B1000-memory.dmp

Download