MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41de1c603509906c3ddcb2550617c980ba3dd192048a52b449e3894d94e1bad5. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments

SHA256 hash: 41de1c603509906c3ddcb2550617c980ba3dd192048a52b449e3894d94e1bad5
SHA3-384 hash: ece7f7ae037a414c2b85bf6a5d0a1aab7724fbaf88411c3197c7734a89ecf4ef85ad610f65496e76a51a3f28df115035
SHA1 hash: 71dc0f0edb6940bc05dd9e7ee27f1e248c789c3d
MD5 hash: d25773010f5aed66b9b5f79b81983593
humanhash: cat-hot-paris-lactose
File name:Order No00020212910.exe
Download: download sample
Signature Formbook
File size:491'520 bytes
First seen:2021-10-29 02:17:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:BkheNK7QfyTyiY327xuo6/QwGa75oRH0N3:meNKRTyiY32kb/jy
Threatray 11'038 similar samples on MalwareBazaar
TLSH T189A4E00163E54A26C77A0FB6097321101BB1B9573D62D78F1EC860DE6A7EFC50981FAB
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 511399 Sample: Order No00020212910.exe Startdate: 29/10/2021 Architecture: WINDOWS Score: 100 36 www.craftycatmull.com 2->36 38 www.baxin.net 2->38 40 2 other IPs or domains 2->40 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 8 other signatures 2->52 11 Order No00020212910.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\user\...\Order No00020212910.exe.log, ASCII 11->28 dropped 14 Order No00020212910.exe 11->14         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.lasnochesdeluces.com 74.220.199.6, 49819, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 www.collegedalerealtor.com 44.227.76.166, 49818, 80 AMAZON-02US United States 17->32 34 7 other IPs or domains 17->34 42 System process connects to network (likely due to code injection or exploit) 17->42 44 Uses netstat to query active network connections and open ports 17->44 21 NETSTAT.EXE 17->21         started        signatures10 process11 signatures12 54 Self deletion via cmd delete 21->54 56 Modifies the context of a thread in another process (thread injection) 21->56 58 Maps a DLL or memory area into another process 21->58 60 Tries to detect virtualization through RDTSC time measurements 21->60 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-10-29 02:17:04 UTC
AV detection:
7 of 44 (15.91%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ng6c loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.lasnochesdeluces.com/ng6c/
Unpacked files
SH256 hash:
5866b9ac6b626319e8b19080ea6b460d3f2a53d3bd5b4efa9e57a0e24594c401
MD5 hash:
bee729cb67dea94441e99edd2c9313ea
SHA1 hash:
7b2f264857c7bb3093923a22150bb55909233e2b
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
7124351b8ddcd117da7ffc92133a28b17d6ec5d5d887fcce078135d6fcf2fab0
MD5 hash:
e724e9a5384060a2d6eb6ffac28edc71
SHA1 hash:
ba3c3fff8cf0764dc263a2aa63d61de6009ac5c6
SH256 hash:
4d1ee061c817ea30ca4e461a4f44388662c1c1c2775be2b323858ddbc1679b35
MD5 hash:
1b6d3d31872537cc611ff4322ffc1099
SHA1 hash:
0108adafb207ce044bfb3f7933da45594c545bee
SH256 hash:
41de1c603509906c3ddcb2550617c980ba3dd192048a52b449e3894d94e1bad5
MD5 hash:
d25773010f5aed66b9b5f79b81983593
SHA1 hash:
71dc0f0edb6940bc05dd9e7ee27f1e248c789c3d
Malware family:
XLoader
Verdict:
Malicious
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe 41de1c603509906c3ddcb2550617c980ba3dd192048a52b449e3894d94e1bad5

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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