MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a
SHA3-384 hash: d0ce114f763783894f6dbec58709719be236d5c73d7ff85e237478b2f694b600f09d06d03b0e6ebdd5f7673a2cf02543
SHA1 hash: c9587c8d495c30ac67585000c790c660f0b7eaeb
MD5 hash: 56ae942ed65be90b2dc9b50afbe738b0
humanhash: ink-carbon-lima-three
File name:Quotation.zip.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:850'432 bytes
First seen:2021-03-31 07:01:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:c8+ku1B6oRHR6ddl91vJ0BmRhZhtshtdnEhYcwzu9FXSiyyjK:3+kkcoRH4R1vJ0YRXhts1VyFd8
Threatray 4'400 similar samples on MalwareBazaar
TLSH 7E05BF823141DCD9E40329F6586ED5601168EEDE8127CB0D2746FF2B64E774A2CEB78E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: slot0.seasonmedical.co
Sending IP: 185.121.120.165
From: Olivia Amelia <postmaster@seasonmedical.co>
Subject: Export department:sales inquiry
Attachment: Quotation.zip (contains "Quotation.zip.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation.zip.exe
Verdict:
Malicious activity
Analysis date:
2021-03-31 07:19:58 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/528d7087-c314-4a95-8d3f-421d80e8a574

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/129178/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.601-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/659990
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 378926 Sample: Quotation.zip.exe Startdate: 31/03/2021 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 12 other signatures 2->48 10 Quotation.zip.exe 3 2->10         started        process3 file4 34 C:\Users\user\...\Quotation.zip.exe.log, ASCII 10->34 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 Quotation.zip.exe 10->14         started        17 Quotation.zip.exe 10->17         started        19 Quotation.zip.exe 10->19         started        21 Quotation.zip.exe 10->21         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 23 explorer.exe 14->23 injected process8 dnsIp9 36 www.yaanpay.com 154.201.179.48, 49724, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 23->36 38 www.impactpittsburg.com 192.187.111.222, 49741, 80 NOCIXUS United States 23->38 40 2 other IPs or domains 23->40 50 System process connects to network (likely due to code injection or exploit) 23->50 27 cmstp.exe 23->27         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 27->54 56 Maps a DLL or memory area into another process 27->56 58 Tries to detect virtualization through RDTSC time measurements 27->58 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-03-31 04:18:19 UTC
AV detection:
14 of 44 (31.82%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l4y3r7ct6rrivjty2fsltfltfpviv76sdamf22prvwdomw5xov5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02c3598e5f583ac0f0aa5d5c666095d1ab1cd02ebf8d23ad7db61f00da7b793a
Formbook
09f19a43e9a0b736e9fcd33359267340b91a2ccc376c8cda72fac9754c1493c0
Formbook
1a859f18a203b53f7c893f9e3d3cbfeb6bd9c0d479f1ddd5626ba4c9eb34e670
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56368dfb68347ec22ba4d8d1d16e1acc9dbf37acf30803ef92f75f27f0a6a6a5
Formbook
5d5d64a87a5d888443e8d7a25046922fa4a39fe5952a45635dd66321e616bb14
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
Formbook
8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c
Formbook
b69927fbfd7eb038b59aa9b7e9f49cb02d127d48fcf6517e65a379e982e806bc
Formbook
f130539b2d2324246449abb99f5a0effb214feee629b092d48ac63aca14e2ba6
Formbook
+ 4'390 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/210331-zhhzjrch6x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.talllensphotography.com/md5/
Unpacked files
SH256 hash:
22f771487d353ef9e9719c760f6f7ec683eee79ef3232a16efa6ce5e96e582ac
MD5 hash:
4442710d8f704d4bb46a770884eb8c94
SHA1 hash:
dae7388dabd1e8cfea63193b2dd0e7768da11dd7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b32a0405-f25d-4781-a093-817c61a91faa/
Parent samples :
8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c
5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a
d96879b03c94cdf3e91756c0454825de2920b90cc7ffe73272692d572b930950
0cec69e7857e687c0352812a4206e68f57008ea07d34b51bb9b1fc44ef042ff6
69a395d24a3536ef7698ae036596bed55856d4777356946f498faec3f1395f8d
SH256 hash:
f07d792f407c7e0b30e0aa5f1f7e0452e103d005948a0f2cad1cfc9ea9eacfbc
MD5 hash:
421aa14eb2e6c2d6a08cc980852abfc9
SHA1 hash:
f3cbf47727ac53c042ea2b1e8f2e9244f64cde93
Link:
https://www.unpac.me/results/b32a0405-f25d-4781-a093-817c61a91faa/
SH256 hash:
fdccaed76f7279e6b8cc1579dadeed03fa1b8d1adcdfbcac585a68da168366d5
MD5 hash:
8b603b23caf00139206f293eb741a9f0
SHA1 hash:
1cc90aec7ce07b13930fe0c088fe3cd155b3ea07
Link:
https://www.unpac.me/results/b32a0405-f25d-4781-a093-817c61a91faa/
SH256 hash:
5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a
MD5 hash:
56ae942ed65be90b2dc9b50afbe738b0
SHA1 hash:
c9587c8d495c30ac67585000c790c660f0b7eaeb
Link:
https://www.unpac.me/results/b32a0405-f25d-4781-a093-817c61a91faa/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a

File information

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

Malspam

Formbook

zip bfdad46d5b26f40ac15f2843ae87f5cc20fe4c88b4877b5321211fca171eef3f

Formbook

Executable exe 5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a

(this sample)

  
Dropped by
MD5 ec3800e32df7ff5c00f6c9f64fbff256
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/129178/
  
Dropped by
SHA256 bfdad46d5b26f40ac15f2843ae87f5cc20fe4c88b4877b5321211fca171eef3f

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