MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c51d0fcb5c1fe7fdd146d5216ad3108fe0ad9baba0fda491a9b7a4f4a33b8801. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: c51d0fcb5c1fe7fdd146d5216ad3108fe0ad9baba0fda491a9b7a4f4a33b8801
SHA3-384 hash: 68e002642c2509a79e2f22bc59ee83a6636073355afe17ed70b7996990a00c99a276064d48b026328ddab1cc2c83c2b4
SHA1 hash: 9456646c4401baf1c8bcdd173da710afb67acd60
MD5 hash: cf0ab114b603a1914ea78ceeedb3dd8c
humanhash: finch-finch-beryllium-hotel
File name:9887230123.exe
Download: download sample
Signature Formbook
File size:792'576 bytes
First seen:2021-08-31 10:18:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c2d34edc2aca1b8c272c5cd63dd80347 (3 x NetWire, 1 x Formbook, 1 x RemcosRAT)
ssdeep 12288:EcMJCaTkjTh4b6XG3n7ybodv9cPdgwKue03SOXjVwrsqaE6MzF5:EBi94zYSFcFgw6nza2
Threatray 8'794 similar samples on MalwareBazaar
TLSH T1CDF45D2262D1ADB2E5232E31CC0FB6A079567D67A4284D0A6FF4CD489F64A44393F35F
dhash icon 48ca4c67d3260aca (3 x NetWire, 1 x Formbook, 1 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9887230123.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 10:18:40 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Sending a UDP request
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
60 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject threads in other processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-08-31 10:18:05 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader persistence rat suricata
Behaviour
Enumerates system info in registry
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
SH256 hash:
c51d0fcb5c1fe7fdd146d5216ad3108fe0ad9baba0fda491a9b7a4f4a33b8801
MD5 hash:
cf0ab114b603a1914ea78ceeedb3dd8c
SHA1 hash:
9456646c4401baf1c8bcdd173da710afb67acd60
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe c51d0fcb5c1fe7fdd146d5216ad3108fe0ad9baba0fda491a9b7a4f4a33b8801

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments