MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b
SHA3-384 hash: 9e3a14b8ea0a6efac9457153686f8db12fcf59d8a7e6e6b01fa8a3b62e9e1d2b970473c8c5697dcc84188749e65f50bd
SHA1 hash: ad98482ee1e4c90d5ffc19b3ec4720a332f0800a
MD5 hash: b5e5802e37b01b3aa324090e4fc0af3a
humanhash: pizza-louisiana-delaware-nitrogen
File name:Purchase Order_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:531'968 bytes
First seen:2021-01-18 09:43:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3f85ebb67bac58f72de974a91d40889a (5 x Formbook, 3 x RemcosRAT, 2 x AgentTesla)
ssdeep 12288:Q8WvAMYGY5RFNBeU7vgTOzRtCe1VRCkQUsxAtZ3Kv:Q8W4T17vgKzhbSVAtZ3y
Threatray 3'503 similar samples on MalwareBazaar
TLSH 5AB4AD21B880C032C17329354979E2B2097EA5305F655ACFBBC819B95FB41D2B73A67F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: opstradinq.com
Sending IP: 45.135.135.84
From: Purchase Dept. <purchase@opstradinq.com>
Subject: New Order
Attachment: Purchase Order_pdf.xz (contains "Purchase Order_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-01-18 09:54:31 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/07de376b-a41e-49b3-9ae0-cf0572fe67d3

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/112538/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Unauthorized injection to a recently created process
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Sending an HTTP GET request
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/583652
Signature
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)
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 340864 Sample: Purchase Order_pdf.exe Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 5 other signatures 2->43 10 Purchase Order_pdf.exe 2->10         started        process3 signatures4 51 Maps a DLL or memory area into another process 10->51 13 Purchase Order_pdf.exe 10->13         started        process5 signatures6 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 16 explorer.exe 13->16 injected process7 dnsIp8 29 www.l7zexitam.xyz 43.249.241.183, 49760, 80 VECTANTARTERIANetworksCorporationJP Japan 16->29 31 investorshighway.com 216.10.245.204, 49747, 49763, 80 PUBLIC-DOMAIN-REGISTRYUS India 16->31 33 22 other IPs or domains 16->33 35 System process connects to network (likely due to code injection or exploit) 16->35 20 cmmon32.exe 16->20         started        23 autochk.exe 16->23         started        signatures9 process10 signatures11 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 25 cmd.exe 1 20->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-18 09:44:06 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=646bujkjwem2lxrzmtg4xpn67owkebpb6fe3jv3wrcusfbnu2ifq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
148007b32a311769a958c3f87c6c836b14457f17dbe6a9a0188b0f68b3c30b40
Formbook
58b012a7c77564704af9bc88d272f1aa68c6789c84a146d0f566304c370bc89a
Formbook
5cd75052c82b5ff0cc1261075c4fdb060c21062c72525508cbb75e44683f6d0b
Formbook
6fbc3e54a04aeadf268907b5041bdaf5af8980d76eafce3bc5d995c0fa779fd8
Formbook
b2c722497192e585403d800c2b34bc14ed8c7ea9b0f2b4e8c7b7951b645cd319
Formbook
b88d84be2994a05ac716dac99a689356d8c7ecbd541989a5339be403da909430
Formbook
b9e89d7766f894c102cd449dace5e9c1ef8f3cdca070af5f6ce22a7737eb593a
Formbook
ceb2632fac30996ac58a50455d968873321f7a18972db02e9535b485a3b0e2f7
Formbook
e2d83de235b73fa4366db562daf7a16884eb632bc00ac8d12d371bdc7a2d1c2f
Formbook
e7091e7da366f0b1d4acbc1295841c6f7d1ab9412a9fe3fd9341c9d94274c457
Formbook
+ 3'493 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210118-3s18le8btx/
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 UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.chuanxingtong.com/j5an/
Unpacked files
SH256 hash:
f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b
MD5 hash:
b5e5802e37b01b3aa324090e4fc0af3a
SHA1 hash:
ad98482ee1e4c90d5ffc19b3ec4720a332f0800a
Link:
https://www.unpac.me/results/35ecfc74-efc7-4b9b-ba1d-9c9324a565ba/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b

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.

eebce6458a05fb67590200a0e444f383

Formbook

Executable exe f73c1a2549b119a5de3964cdcbbdbefbaca205e1f149b4d77688a92285b4d20b

(this sample)

  
Dropped by
MD5 eebce6458a05fb67590200a0e444f383
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112538/

Comments