MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
SHA3-384 hash: f872d0b1ab07120f217c8ac23fe3384dfa341e2b092798c21a75d43e6807f0505eb7084d2a06b116dbf6db4220730e0e
SHA1 hash: 5f16af33b1cc461e4c6b4f5d1848547040fa1772
MD5 hash: 2d4991b52cb7c3f5e3cb8ed4d22c069a
humanhash: carolina-mirror-lactose-orange
File name:$$$.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:779'776 bytes
First seen:2021-09-27 09:06:18 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 12288:eMO0T2DZa6H60+lCiTXc/KiOCqpkeotTDgRq++gM4kcYuRa6H60+p:DwF+cWXc6UgX+6YwF+p
Threatray 9'629 similar samples on MalwareBazaar
TLSH T175F4BE2676C49877CB2E46F99417A20283F2AD577E1DE7C81CD230EBA5F1F426742293
dhash icon 00868ecccce8cc10 (13 x AgentTesla, 9 x Formbook, 2 x NanoCore)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
$$$.exe
Verdict:
No threats detected
Analysis date:
2021-09-27 09:07:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b9730223-e4ad-4105-8f5a-4c61baf1a774

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/192005/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.5369.9645.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fbaa8464-c3b4-4e12-ac38-0d54414667f8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858775
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 491207 Sample: $$$.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 39 www.umofan.com 2->39 41 www.inpude.com 2->41 43 2 other IPs or domains 2->43 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 9 other signatures 2->57 11 $$$.exe 3 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\Local\...\$$$.exe.log, ASCII 11->37 dropped 63 Writes to foreign memory regions 11->63 65 Injects a PE file into a foreign processes 11->65 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        20 RegSvcs.exe 11->20         started        22 RegSvcs.exe 11->22         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 24 explorer.exe 15->24 injected 81 Tries to detect virtualization through RDTSC time measurements 18->81 process9 dnsIp10 45 espraycash.com 162.213.255.42, 49833, 80 NAMECHEAP-NETUS United States 24->45 47 www.pavlonmedia.net 45.33.18.44, 49827, 80 LINODE-APLinodeLLCUS United States 24->47 49 13 other IPs or domains 24->49 59 System process connects to network (likely due to code injection or exploit) 24->59 61 Performs DNS queries to domains with low reputation 24->61 28 rundll32.exe 24->28         started        31 autoconv.exe 24->31         started        signatures11 process12 signatures13 67 Modifies the context of a thread in another process (thread injection) 28->67 69 Maps a DLL or memory area into another process 28->69 71 Tries to detect virtualization through RDTSC time measurements 28->71 33 cmd.exe 1 28->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 02:09:01 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tbg6y6nyqgw7lhktbd2s7xpnud54zpmrpn2q63wjuw7bugsnyd5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1076b9efbc0e135c85f1228253f9a1d2f35f4fd49c70d290de72808f72bd56eb
Formbook
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
64c00be3d0bc5f000ee6d2d6d49e72c9e9f36090f19b7f9620ff0993a0e84025
Formbook
774c08451198a951fa73f9859b5e48c12c5df9214759e4717e56d92fb4c09d1e
Formbook
a0d1e3fbe11fcbbea9dcad1880e23ea531c01c20fbbf383174cd420349657a01
Formbook
a51f4703edfdf96e7d4ed7efc9591119973c192d81131c73c24b39f9f6f7b60b
Formbook
a7acd97fcff334160640901d977010aa55397f5a6da375ab38bcb1622b800f7d
Formbook
c5ccdeea44050d8be9cf04b42ba6336dfd81e4a930ec6cd916f5f4e3a5f713bb
Formbook
+ 9'619 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:jdt0 loader rat
Link:
https://tria.ge/reports/210927-k3bc6agcb7/
Behaviour
Gathers network information
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
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.jen4x.com/jdt0/
Unpacked files
SH256 hash:
752d86779f0a6e6a1ab9ce1b34a113bd51253f49245eb1553fabe75fdcef86a0
MD5 hash:
0b1d2881da374de2f3751c4f85f6fdc9
SHA1 hash:
65c1b8747dbba9dd5ddbf4db72ef0eecd05413a7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/99824b69-ac36-4311-8984-237cb61ce263/
Parent samples :
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
a51f4703edfdf96e7d4ed7efc9591119973c192d81131c73c24b39f9f6f7b60b
984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
5e27b2f6ec7f0387f6c380ac26eb924fcc732601c43ed7c400c42ae82fb0de57
d2c3619f62ee7f09594134678d02e47d6a0b71a5e203f3edae6a9f5dbecb4f48
7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900
SH256 hash:
871ca801840be17593bf8c39094b31259adc4224d01781185bb5a35d5a6fc3c5
MD5 hash:
2a0f5ceccd532068e0b55a91fdb01ff4
SHA1 hash:
d2b2668222fdc17148f77df80c2f579d7d0eb529
Link:
https://www.unpac.me/results/99824b69-ac36-4311-8984-237cb61ce263/
SH256 hash:
a770d58c821fe0cf8d2380612ea1855b3671c3657893a983da37ca8cbf873ecd
MD5 hash:
dfddf13f597742c9d80a9784a245d672
SHA1 hash:
0f890301eb6496147b5f28c831e28454e662e5cc
Link:
https://www.unpac.me/results/99824b69-ac36-4311-8984-237cb61ce263/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/99824b69-ac36-4311-8984-237cb61ce263/
SH256 hash:
984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
MD5 hash:
2d4991b52cb7c3f5e3cb8ed4d22c069a
SHA1 hash:
5f16af33b1cc461e4c6b4f5d1848547040fa1772
Link:
https://www.unpac.me/results/99824b69-ac36-4311-8984-237cb61ce263/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/984dec79b881/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/192005/

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