MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a
SHA3-384 hash: 59fa531bf3c1b845f80351808a5b5a16c5456082f901282e02415056ab37e84c39329bd6c20ffa4f7fd5d77df3c6f886
SHA1 hash: c32a1e78b748fe90343a440cdba3e7e20833c293
MD5 hash: c7ae6a157a36f1c5dd0331a5a2a24485
humanhash: oklahoma-cold-lactose-jupiter
File name:RFQ_230921.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'121'280 bytes
First seen:2021-09-23 14:36:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:p22iNq2iNFOKoAt3zZ8zw38eVETsGodhWqu/XppSvgjgyMnFVSiyyjK:p21I1LOKT3l8c8e9dwqSDkgUyGVd8
Threatray 8'215 similar samples on MalwareBazaar
TLSH T1FB35FE294D2682F7C7DFC67CD08C4BCEDA66A4877B918F1ED582D782029B70BE48855C
File icon (PE):PE icon
dhash icon f29296968e9e9ea6 (60 x AgentTesla, 37 x RedLineStealer, 35 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/190817/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1037-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e194ef39-ffa6-4031-b263-42627ab95f18
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/856611
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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: 489045 Sample: RFQ_230921.exe Startdate: 23/09/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 7 other signatures 2->42 10 RFQ_230921.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\RFQ_230921.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 RFQ_230921.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.huaxincaifu.com 45.199.60.76, 49786, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 17->30 32 www.bonerag.com 17->32 34 ghs.googlehosted.com 142.250.180.211, 49814, 80 GOOGLEUS United States 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 msiexec.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-23 03:42:44 UTC
AV detection:
23 of 45 (51.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ngattonz6473uj2bbnsdfvskryzz62wubzacgc4hyhe3ob4zwj5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
6bb763ffd1ca484344f2a02df3f9e6bddc18a0f1fcd5d58002ad16b82b36db90
Formbook
6bcdb1b6795c22308aee5d390cfae409d21a3238a304466dd54c1dee43570afd
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
Formbook
a99b696e8ac16303843b26c95c982d5be9b9fd657d843937cc586c9a8dc29b83
Formbook
af0af3ebf3ac231ad77dbe4cbfa0fb2d48312d4ca0b5431081046ab09aa3b552
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
+ 8'205 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:q9mq rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210923-ry6rtseefp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.lettiacastello.net/q9mq/
Unpacked files
SH256 hash:
c7f337ab47f14ef4b94b0ee77420fb1e0e55745d2eba9b5badb1eb8d2373bf7e
MD5 hash:
130f6d4b320c348c736ae111044cc6a5
SHA1 hash:
36f8451a3b3a3c0377aea71c3c40e29fbde93fe6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/95b6bd48-0cca-4cca-8d26-565b513143c5/
SH256 hash:
ba2b2a7f7673b5d61580028602d5912c6b135411b0fc97c75c7676ce1c2971f1
MD5 hash:
c0d09aa603ba27cb3afb4905849ed74d
SHA1 hash:
bd8c49865c4dbdff6592a4b8d94c985d18c45493
Link:
https://www.unpac.me/results/95b6bd48-0cca-4cca-8d26-565b513143c5/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/95b6bd48-0cca-4cca-8d26-565b513143c5/
SH256 hash:
698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a
MD5 hash:
c7ae6a157a36f1c5dd0331a5a2a24485
SHA1 hash:
c32a1e78b748fe90343a440cdba3e7e20833c293
Link:
https://www.unpac.me/results/95b6bd48-0cca-4cca-8d26-565b513143c5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a

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:pe_imphash
Create hunting rule
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.

Malspam

Formbook

Executable exe 698139b9b9f73fba27410b6432d64a8e339f6ad40e40230b87c1c9b70799b27a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/190817/

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