MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94
SHA3-384 hash: 5b25b9a9c5fc758093578010a03e7711e1db291f086f17453e85b072110009bf59180a411e333aca02799e429b9dd1a5
SHA1 hash: 22bc724884cf52efe4c596bcd8ffdd155c783238
MD5 hash: ba3c72780f80542fe09aeed80a9a56c6
humanhash: earth-mockingbird-skylark-wisconsin
File name:grace $$.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:501'248 bytes
First seen:2021-09-07 05:20:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:nnBvlIlWuTpGUMgc8cNPD/t1owJ/ag1iTOEdo29hwgy537GjqsfThJS8MHoAeTRk:nOWNUMFNbt7ag1jAhwgySLhDMHoF1k
Threatray 9'026 similar samples on MalwareBazaar
TLSH T1F8B423047BD8CB5FC9AE46FB019D6D021FB1911E6AC7E7C10CA1C6DA88D63E00E869D7
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
grace $$.exe
Verdict:
No threats detected
Analysis date:
2021-09-07 05:21:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/372ba7a0-71b6-4a23-987d-941e7502698d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/185796/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/46c94220-82f1-496b-8293-8d9500e8b9a3
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846236
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 478667 Sample: grace $$.exe Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 31 www.vertexnailsblaine.com 2->31 33 www.abvoltprunus.bid 2->33 35 vertexnailsblaine.com 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 10 other signatures 2->49 11 grace $$.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\grace $$.exe.log, ASCII 11->29 dropped 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 15 RegSvcs.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.sarajanesstudio.com 104.160.190.61, 49727, 80 ST-BGPUS United States 18->37 39 www.naturalcreativesociety.com 91.195.240.117, 49735, 80 SEDO-ASDE Germany 18->39 41 10 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-09-07 04:19:40 UTC
AV detection:
11 of 41 (26.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zbao4nupzk2zorefyfx4ivvr3qmshtc6ce6onklpn4yuu7wfvska._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5bc9d0c8fd02f1c138178b1291378304a653717076f9e12ba4334609dcf7b11c
Formbook
6db6324fe282260a224e77fff9bdad3240a63d48ac587f2a701785ea69c317a5
Formbook
7af335cb2a2646ddadf12f730585a217523da868aaeb12ba621b367c1b942693
Formbook
a086821049463b0bfc414cb3763c4f82688182d2d018ae5c9cd472f59f9e36ff
Formbook
aa9574014df2ac3fe4c9f8e32c45197542377ea99805665bcb0b4258df36adda
Formbook
ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81
Formbook
c36c6fd8b9b9f444675b6c97fa1dfa2c2fa05aba6c0f6f4f164e0cf7d1e5bfc7
Formbook
+ 9'016 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:t75f loader rat suricata
Link:
https://tria.ge/reports/210907-f1z7aafbep/
Behaviour
Gathers network information
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.vertexnailsblaine.com/t75f/
Unpacked files
SH256 hash:
034c645316c78acb2b9110f9bfd8b840b981489bab385e8c39912ec5c7c4f1c9
MD5 hash:
d17b3ace9f0ca124101674d27328cbf6
SHA1 hash:
8ed2472b79df133a2d6cc73cbed726c444b91bff
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
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Link:
https://www.unpac.me/results/2f4cd22d-2950-4225-ac7f-4dd0aac2e4cb/
Parent samples :
7af335cb2a2646ddadf12f730585a217523da868aaeb12ba621b367c1b942693
5bc9d0c8fd02f1c138178b1291378304a653717076f9e12ba4334609dcf7b11c
c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94
34f75f8458b1f58bdb1e8ff1a46270f98c6d246d213413cd0c4a7708e15e82c9
4a91d8f52d07bcd7fde157c6b56e2881c4abba94a0f7921633da4ae2bba53074
43d831616e23a03c055971bc1c7c9ae0e87f491976e72ce8fa0074610f004488
SH256 hash:
48282ed7132d43d200496a6f87f70d134e6195ae9e7e9de238935b61f8816b6e
MD5 hash:
7e8e50ca7b95b1f7e45acc50150aa226
SHA1 hash:
e9d379c8e6987b969117011be7b7e5ccbf9d5f14
Link:
https://www.unpac.me/results/2f4cd22d-2950-4225-ac7f-4dd0aac2e4cb/
SH256 hash:
81f9eac76804c02f5baaa34c91b5775f965a34ad7811218d9c24e50cb6d9a90c
MD5 hash:
bae511742374b721136acaa03b0c1fa0
SHA1 hash:
215c50455b01a78ea173bbb034ddbe4b452ea734
Link:
https://www.unpac.me/results/2f4cd22d-2950-4225-ac7f-4dd0aac2e4cb/
SH256 hash:
c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94
MD5 hash:
ba3c72780f80542fe09aeed80a9a56c6
SHA1 hash:
22bc724884cf52efe4c596bcd8ffdd155c783238
Link:
https://www.unpac.me/results/2f4cd22d-2950-4225-ac7f-4dd0aac2e4cb/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c840ee368fca/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94

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:pe_imphash
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/185796/

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