MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42
SHA3-384 hash: ea1a7ed2f508ac9601b510b01a24192d4b807eda821a26b8be5a247ae7bc76389dd04b9a45b5d37c1cd34f492aa45612
SHA1 hash: f3cf1c4c37bfc5c2367d6913c5c5f2359210ab35
MD5 hash: 0cdd2993773330a0eb6f8271c101ffe0
humanhash: queen-failed-washington-echo
File name:RFQ FILE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:648'192 bytes
First seen:2021-07-03 06:08:48 UTC
Last seen:2021-07-03 06:54:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c1072ee07da4eced0d3aa8070e662c20 (2 x Formbook)
ssdeep 6144:ilHITJSSNOzhxM/rVskv02RoarPho1qElMYwj0LuPHzGr49cHeoaEZUjCeHo1TMs:4HITJ1NOtklBqGYQCrO2aCNeI1oXc
TLSH 72D48EE376A19E37E1121E393C2B96696826FE012D2C17C55FF53F584E39682783C293
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ FILE.exe
Verdict:
Malicious activity
Analysis date:
2021-07-03 06:28:16 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/e5ed56c7-de84-46ba-bce7-d50b0c8479dc

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/169473/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/213ce4d2-296e-4aba-8f4a-ff5758022a95
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811362
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 443770 Sample: RFQ FILE.exe Startdate: 03/07/2021 Architecture: WINDOWS Score: 100 29 www.eneralysis.com 2->29 31 www.runforlunch.com 2->31 33 ghs.googlehosted.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 3 other signatures 2->47 11 RFQ FILE.exe 17 2->11         started        signatures3 process4 dnsIp5 39 cdn.discordapp.com 162.159.135.233, 443, 49721, 49722 CLOUDFLARENETUS United States 11->39 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Creates a thread in another existing process (thread injection) 11->61 63 Injects a PE file into a foreign processes 11->63 15 dialer.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Tries to detect virtualization through RDTSC time measurements 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.neutralplasmaexchange.com 18->35 37 neutralplasmaexchange.com 34.102.136.180, 49742, 80 GOOGLEUS United States 18->37 49 System process connects to network (likely due to code injection or exploit) 18->49 22 chkdsk.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       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2021-07-03 06:09:13 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6epz5jxvw5vtdmdgxoyrw5ilsl62ztjgaeex5yykautr23vxrba._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:xloader loader persistence rat trojan
Link:
https://tria.ge/reports/210703-mjb7qnp4pj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Adds Run key to start application
Adds policy Run key to start application
Xloader Payload
ModiLoader, DBatLoader
Xloader
Malware Config
C2 Extraction:
http://www.brandonprattdrums.com/nt8e/
Unpacked files
SH256 hash:
1d58fa23d2083f1b7987c14aafdd6e7f106359cdbdd08868ad7851048a2907ed
MD5 hash:
90c471344ad863ea8b5f4c9f13699cd9
SHA1 hash:
e03397aab57be129b32bda5dfe1e249a6fe834e0
Link:
https://www.unpac.me/results/037203bf-1517-43fa-97be-a2a7e578e3b9/
SH256 hash:
4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42
MD5 hash:
0cdd2993773330a0eb6f8271c101ffe0
SHA1 hash:
f3cf1c4c37bfc5c2367d6913c5c5f2359210ab35
Link:
https://www.unpac.me/results/037203bf-1517-43fa-97be-a2a7e578e3b9/
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/4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42

File information

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

Malspam

Formbook

Executable exe 4f88fcf537adbb598d8335dd88dba85c97ed666930084bf718502938eb75bc42

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/169473/

Comments