MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f
SHA3-384 hash: 28b68082266e5c7e206eaf3999a600b15ed317dd7a4abd9a1d527514a1f0e2e4408ae0a45b4a7e69a10117a974decb14
SHA1 hash: c83cb3c6499bec6dcdf600d4d7e82638fa9a6cf2
MD5 hash: 83a32d0d136cadf943aa605a7b1e3dc0
humanhash: kitten-undress-georgia-chicken
File name:DOC20211005-0918629831.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'085'952 bytes
First seen:2021-10-05 13:53:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:6KFJzCCj6OrFr86CDMhz2iNHc1MwJ7D7OYyZUVwaCSxSv7GlaSVX9hF2sweKHHA:Vv16o986CDMhz1Vcn5OY7s+2GlaSiyg
Threatray 8'613 similar samples on MalwareBazaar
TLSH T1A335AE25B3CE6B92D82E0E3AD923014583F089171732F76B6AD13AE60D25FD79B1F191
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DOC20211005-0918629831.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-05 12:46:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b933fff2-a160-48a5-9478-9811663c62dd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/195090/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c58ffb95458900cdc77b9/reports/492877cd-f092-48a8-b52b-b540f4eb5590/overview
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/027f4410-28b6-4247-ba82-545e7f836943
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864877
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 497307 Sample: DOC20211005-0918629831.exe Startdate: 05/10/2021 Architecture: WINDOWS Score: 100 34 www.realestatebramlett.com 2->34 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 4 other signatures 2->56 11 DOC20211005-0918629831.exe 15 4 2->11         started        signatures3 process4 dnsIp5 40 www.google.com 142.250.203.100, 443, 49754 GOOGLEUS United States 11->40 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 11->30 dropped 32 C:\Users\...\DOC20211005-0918629831.exe.log, ASCII 11->32 dropped 68 Writes to foreign memory regions 11->68 70 Allocates memory in foreign processes 11->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->72 74 Injects a PE file into a foreign processes 11->74 16 AddInProcess32.exe 11->16         started        file6 signatures7 process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 16->42 44 Maps a DLL or memory area into another process 16->44 46 Sample uses process hollowing technique 16->46 48 2 other signatures 16->48 19 explorer.exe 16->19 injected process10 dnsIp11 36 www.164661.com 1.32.255.137, 49848, 80 BCPL-SGBGPNETGlobalASNSG Singapore 19->36 38 www.online-security.support 19->38 58 System process connects to network (likely due to code injection or exploit) 19->58 60 Uses ipconfig to lookup or modify the Windows network settings 19->60 23 ipconfig.exe 19->23         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 23->62 64 Maps a DLL or memory area into another process 23->64 66 Tries to detect virtualization through RDTSC time measurements 23->66 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-05 13:54:08 UTC
AV detection:
20 of 45 (44.44%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
679ce1d895289ba4b92a72e1e1c00d3698395afcbe99474308092cb3cf4272fc
Formbook
a86f792a5a3d424b756508cb462d3ca9b454f2513a5471df5d41da33649748e9
Formbook
b2fa4bbff4b67fef522c3b6cbc3a98b0c2f463045f19af5f96ee7a3c48ea9f93
Formbook
bcf09c801e101acbaa20ef272f86c7eac2c311bf20c6a5b6e245fc0b92be576e
Formbook
d1a1c263b4343b91e2d8dc0ac2bda68cb43490b98cd59afa6dcc7128dcbb4d0b
Formbook
d1c5fc3919d75c03db6df503ba210900921351ee1bbeb45c7a435ac5671c3a9e
Formbook
ec744aeae689c95f44a24eb398e65c3a722595de5504db84b2e41488f30a7510
Formbook
f3272e7d0612d36b532d6a99a15fea8fb9c453188847a12b69d539719c0c8c16
Formbook
+ 8'603 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ntfs agilenet loader rat suricata
Link:
https://tria.ge/reports/211005-q7j4raacap/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.164661.com/ntfs/
Unpacked files
SH256 hash:
85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f
MD5 hash:
83a32d0d136cadf943aa605a7b1e3dc0
SHA1 hash:
c83cb3c6499bec6dcdf600d4d7e82638fa9a6cf2
Link:
https://www.unpac.me/results/64acf187-11f7-4a12-879d-4a39dda50a4b/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/85eb901d5863/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Distributed via e-mail link
Cape
Cape
https://www.capesandbox.com/analysis/195090/

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