MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806
SHA3-384 hash: 55b5c2fabbdb2a56502660a45e70eafafafbd9cf224c749e2690a6451cd0261ee8521cb83bea4eb97a4b0468b606b0c4
SHA1 hash: 9e3f388448f7c7ca4dcde0ab6fda56897a3afc53
MD5 hash: faa036cbca3230e8df524875427c41fd
humanhash: angel-aspen-item-leopard
File name:faa036cbca3230e8df524875427c41fd
Download: download sample
Signature Formbook
Create hunting rule
File size:771'072 bytes
First seen:2021-07-28 15:33:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'658 x Formbook, 12'249 x SnakeKeylogger)
ssdeep 12288:D0UhJO0COsBgo0q4wMm2lINuWber+ZXocxP74+VlkJaPeDCzgDG010kz4:D0UhCOsBgo0q4wMnbAe6v74+jktDYgl2
Threatray 7'003 similar samples on MalwareBazaar
TLSH T171F4ADB1222DBF1BF03E477C6021509153F4806FE729CB99FFA640EB6F58E8745A164A
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New Order EF56446.xlsx
Verdict:
Malicious activity
Analysis date:
2021-07-28 14:50:32 UTC
Tags:
encrypted exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/8569559f-79cc-4c36-b474-f42c6475a8dd

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/174697/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.953-1.UNOFFICIAL
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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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16b8fc14-2a61-4908-99f5-a4e2a29202db
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/823179
Signature
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 455587 Sample: DXW7UkLRfc Startdate: 28/07/2021 Architecture: WINDOWS Score: 100 31 www.surreal-myzrael.com 2->31 33 surreal-myzrael.com 2->33 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 6 other signatures 2->45 11 DXW7UkLRfc.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\DXW7UkLRfc.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 DXW7UkLRfc.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 bolaci.com 184.168.131.241, 49752, 80 AS-26496-GO-DADDY-COM-LLCUS United States 18->35 37 www.bolaci.com 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Uses netstat to query active network connections and open ports 18->49 22 NETSTAT.EXE 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Gathering data
Threat name:
ByteCode-MSIL.Packed.Generic
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Status:
Suspicious
First seen:
2021-07-28 06:49:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 28 (64.29%)
Threat level:
  1/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0a84e32cef475ad1e323bdaa15a1f5b2e690b6d4b18afe7b36a82f95ceb76ac3
Formbook
1ad48f80cfee387f4e2a2d5c82d784a6a23060f0095712c4021fe6cba34cc60e
Formbook
35cace59334f4d4cd0714de7c3ffbe2d6817bcb19f1bfc642c5d4d47d5bd309d
Formbook
7d65154a5dc05da45ebfe7b8a5bdb4858bf80812060257a5bde5d90ab12b23a6
Formbook
7ff8da221f76a27a09d3cf6be17e7f40cf74c98fc8513ec8dc5d72ee34e75a5e
Formbook
c3005496c888af4b9fc31dbd00bf40159d9c0dbb5a7bd4fa6014afd6b33cdf3f
Formbook
+ 6'993 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210728-vtdvd7jj2x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
CustAttr .NET packer
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.surreal-myzrael.com/z7a/
Unpacked files
SH256 hash:
97d2fa1d01b2f9a2199896e05e0cf60c14a9f41ef2d72e15fbb862b7afa08438
MD5 hash:
68463851c0e6fe7a254c99fae763d454
SHA1 hash:
4587a5371d88c296a0184fe47ee0c5245b187127
Link:
https://www.unpac.me/results/5b07aab8-4fb8-4921-ba5c-2e403c403896/
SH256 hash:
84a4feff20b129764111fe2857d4f78dd3c7f545e26a516a72603e174f7e87ae
MD5 hash:
d57ed7256c1c370edb0a0dfb7c0e0d1e
SHA1 hash:
8f80771b7fec94ed37062947305eca7163856ebf
Link:
https://www.unpac.me/results/5b07aab8-4fb8-4921-ba5c-2e403c403896/
SH256 hash:
38515193ee6aaef2f563641ebcf939229d5c8cdf85725677da70d3d504879c81
MD5 hash:
a066aa0c68710225852623d643542874
SHA1 hash:
feff20df3cc7b0e37622814186ba809e2314ac6a
Link:
https://www.unpac.me/results/5b07aab8-4fb8-4921-ba5c-2e403c403896/
SH256 hash:
11f2cb3931ec5e21cee4257b1e1491df71c7b27ff41398f9c2df0fbe92e2a02d
MD5 hash:
283c2dc8e77f81a93abcc917785bf854
SHA1 hash:
19a118fc293cbf3952bc4ee8584066155bb83384
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5b07aab8-4fb8-4921-ba5c-2e403c403896/
Parent samples :
c3005496c888af4b9fc31dbd00bf40159d9c0dbb5a7bd4fa6014afd6b33cdf3f
1ad48f80cfee387f4e2a2d5c82d784a6a23060f0095712c4021fe6cba34cc60e
7ff8da221f76a27a09d3cf6be17e7f40cf74c98fc8513ec8dc5d72ee34e75a5e
7d65154a5dc05da45ebfe7b8a5bdb4858bf80812060257a5bde5d90ab12b23a6
51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806
SH256 hash:
51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806
MD5 hash:
faa036cbca3230e8df524875427c41fd
SHA1 hash:
9e3f388448f7c7ca4dcde0ab6fda56897a3afc53
Link:
https://www.unpac.me/results/5b07aab8-4fb8-4921-ba5c-2e403c403896/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806

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: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.

Web download

Formbook

Executable exe 51c9e29ebe25067c055b664cacc4c4d46b8d19bddd488936c3bab19906311806

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1487533/
Cape
Cape
https://www.capesandbox.com/analysis/174697/

Comments


Avatar
zbet commented on 2021-07-28 15:33:09 UTC

url : hxxp://180.214.236.151/office/dllhost.exe