MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
SHA3-384 hash: 16a17048835a769d0106e5d214dd1db749355b527d9a1e9ce79e2d1ed6e12a633d8229fe7c5d6095cc0ed05f0ac276e9
SHA1 hash: 03b484b11a8342e519e4bf2d0aba93b303cb74e8
MD5 hash: e9837da90bf5397e6694e4fa28128be3
humanhash: jig-arizona-april-uniform
File name:Spec-ORDER 220100114.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:561'664 bytes
First seen:2020-10-15 12:55:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:auwemNlKUl0sev6H5+Q0JUwJsSyR0ahtIQl/FnyGfbIRsoAta8KT263RIehC/7LW:RTbHDdiSG0ahtIQn6r8KT9emo7LdejZ
Threatray 2'687 similar samples on MalwareBazaar
TLSH E7C49D727C92D87FCA6A0736046584C5FAB61EC73BA08B0D615A770CCE31B6BA753247
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: p3965429.pubip.peer1.net
Sending IP: 83.222.252.185
From: Nadeem Ahmed <nadeemahmed@indus-group.com>
Subject: DELIVERY ORDER 220100124
Attachment: ORDER 220100124.z (contains "Spec-ORDER 220100114.pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/71393/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a window
Creating a file
Creating a process from a recently created file
Running batch commands
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/492469
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for dropped file
Creates an autostart registry key pointing to binary in C:\Windows
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 298739 Sample: Spec-ORDER 220100114.pdf.exe Startdate: 15/10/2020 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected FormBook 2->53 55 6 other signatures 2->55 10 Spec-ORDER 220100114.pdf.exe 11 2->10         started        process3 file4 41 C:\Users\user\AppData\Local\razor.exe, PE32 10->41 dropped 43 C:\Users\user\AppData\Local\bin.exe, PE32 10->43 dropped 45 C:\Users\...\Spec-ORDER 220100114.pdf.exe.log, ASCII 10->45 dropped 47 2 other files (none is malicious) 10->47 dropped 13 bin.exe 10->13         started        16 cmd.exe 1 10->16         started        18 razor.exe 2 10->18         started        process5 signatures6 69 Antivirus detection for dropped file 13->69 71 Machine Learning detection for dropped file 13->71 73 Modifies the context of a thread in another process (thread injection) 13->73 75 4 other signatures 13->75 20 explorer.exe 3 13->20 injected 22 reg.exe 1 1 16->22         started        25 conhost.exe 16->25         started        process7 signatures8 27 explorer.exe 20->27         started        30 pcalua.exe 1 20->30         started        32 pcalua.exe 1 1 20->32         started        61 Creates an autostart registry key pointing to binary in C:\Windows 22->61 process9 signatures10 63 Modifies the context of a thread in another process (thread injection) 27->63 65 Maps a DLL or memory area into another process 27->65 67 Tries to detect virtualization through RDTSC time measurements 27->67 34 cmd.exe 27->34         started        36 razor.exe 3 30->36         started        process11 signatures12 39 conhost.exe 34->39         started        57 Multi AV Scanner detection for dropped file 36->57 59 Tries to detect virtualization through RDTSC time measurements 36->59 process13
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 10:07:35 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q7mo62smnp3gdv4vpjrlt2hj5jtcp6ace746vccqfp3adokksyha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0f97d2c99964370b019145742e1d9322e9248fea3e149f00c10ca99807bcafa4
Formbook
22c3cc5bc8bb078f468b2e502ea5054aeaa77a7638c71aeedef7acd075e9af01
Formbook
2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390
Formbook
333a258f45e7a8baaab72b1539859a00bca7309a8d641490329184977090b540
Formbook
4fd6cfb4c08338e8b3a6ec64118aa6ad90350e865e90365b5b700aa41908b984
Formbook
6841a00603c067163259e142990659c0217ded69e2895d187fa65f9439034c7f
Formbook
82ec33dd4f26eab172d8a0fc536751d12153a3f7175351da311a7059217c670e
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
bfae046475f1458c460cf4eed534a48c8e769fbfc622138170c3945a4ad61a90
Formbook
e04b0836667f55bcc1778c62761c99af52cb5c42c14cef3962531512def2944b
Formbook
+ 2'677 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat persistence trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201015-2q8fx9xblj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
MD5 hash:
e9837da90bf5397e6694e4fa28128be3
SHA1 hash:
03b484b11a8342e519e4bf2d0aba93b303cb74e8
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
cc68e3eb8bccc4a249ec5b6f7d83cb2230442040a398aa362c30bfa520987bc5
MD5 hash:
0c74f2c28837f15bd9481236e4fff068
SHA1 hash:
d6aaa270e7cde6512b8861d725556433b7da78b9
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
SH256 hash:
3c2ad487b00e14223a2e5ee6e113d300047d22e5e47714eb4eff7947a170f61a
MD5 hash:
924d8e942220dbe8085356f40bf8758a
SHA1 hash:
9c417f7188159cd94c60415972e89a44fdee4eaf
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
SH256 hash:
acec53adffc12c742eb2d3a723860d8aadbcfefbff0347b302028fb8a7be9c36
MD5 hash:
cd4fb97c5ecf21ca6a8b48007a64fd3f
SHA1 hash:
bc4d3c36ed3415e9feafaf6d19f0c1806e01ad78
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
SH256 hash:
15383eb57bebd7182c5be90d37752206c6604079ec1b8e476882263bb9fa0229
MD5 hash:
1045709e839043fd22333222337c71f9
SHA1 hash:
e040edbb35696cedcdcbc30ad53ee87b893c86f6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ebb76c96-53b4-4e73-81df-75b9472ce0e5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

Formbook

z c5b9c44ced2b1c97b5b30b001b40ced799e62e77b3328a83dcb92f60a6cca06e

Formbook

Executable exe 87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e

(this sample)

  
Dropped by
MD5 2bc0fb0abcc6c99a73611e991509ce6b
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 c5b9c44ced2b1c97b5b30b001b40ced799e62e77b3328a83dcb92f60a6cca06e
Cape
Cape
https://www.capesandbox.com/analysis/71393/

Comments