MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
SHA3-384 hash: 6edd2e031f35749bec7b9eadc22bce68031a24168ce15556853ed4fa7bde84e0beea935e96011efa57b8cd1ed67e5c50
SHA1 hash: 152ecaa7b1afc0c3a5fc57a20e5fc2fc4dcba5f3
MD5 hash: 9d4b5da7765d431b11ccd9a72cadf2aa
humanhash: undress-grey-pip-wisconsin
File name:Z14S9Zolcyub1pd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:522'752 bytes
First seen:2021-09-22 07:17:15 UTC
Last seen:2021-09-22 14:05:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:HbLmtiK5oBgzAoj8Z+8Zj8WvG2HEinP00W+wcWO1Mc3jMcf:/+FoBgzAojUjdrLHF51xWO/wcf
Threatray 9'466 similar samples on MalwareBazaar
TLSH T1B1B4123C82DD6A6FCF4D06BA691159011FF1A1A77AC1F7C3D9D1205FBA8A3C4812B4A7
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
sample_4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e (1)
Verdict:
Malicious activity
Analysis date:
2021-09-22 08:52:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/abb43565-505c-4d50-a7df-bfe1368f6b5f

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/190091/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
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Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d1317abd-4866-41dd-b55d-f212411ed798
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/855393
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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: 487824 Sample: Z14S9Zolcyub1pd.exe Startdate: 22/09/2021 Architecture: WINDOWS Score: 100 35 www.lookyanychev-gallery.store 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 11 Z14S9Zolcyub1pd.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\Z14S9Zolcyub1pd.exe.log, ASCII 11->33 dropped 59 Writes to foreign memory regions 11->59 61 Allocates memory in foreign processes 11->61 63 Injects a PE file into a foreign processes 11->63 15 RegSvcs.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 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.grand-polyana.com 91.195.240.94, 49806, 80 SEDO-ASDE Germany 18->37 39 www.edgar-regale.com 213.186.33.5, 49808, 80 OVHFR France 18->39 41 9 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 explorer.exe 18->22         started        25 autoconv.exe 18->25         started        27 autochk.exe 18->27         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 29 cmd.exe 1 22->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-09-22 05:30:01 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2ytcekmfnttsxh7f4jgy2m2k2pgxjpduu4hn54vrdp2beslhv7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
40da3a76d7dfbe395b879dc9b090af73483617c65c7c433975490c0a22e4a71a
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
64c00be3d0bc5f000ee6d2d6d49e72c9e9f36090f19b7f9620ff0993a0e84025
Formbook
768252369536d1e56aad57c5015925ec464642d13d76468db72e60f9ac4e1a54
Formbook
774c08451198a951fa73f9859b5e48c12c5df9214759e4717e56d92fb4c09d1e
Formbook
84236953e6059c7733ecd777604a225ee85dc96740a46aac1379d13b3d57630d
Formbook
a0d1e3fbe11fcbbea9dcad1880e23ea531c01c20fbbf383174cd420349657a01
Formbook
b32448dbeec13e1eb23e55a57ffc06f9dfc8fd44687e19fc0be1c4fbabc10abb
Formbook
+ 9'456 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/210922-h4yhzabhb6/
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 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/1e1c44c3-a17c-450b-92ae-899a888bed92/
Parent samples :
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
a51f4703edfdf96e7d4ed7efc9591119973c192d81131c73c24b39f9f6f7b60b
984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
5e27b2f6ec7f0387f6c380ac26eb924fcc732601c43ed7c400c42ae82fb0de57
d2c3619f62ee7f09594134678d02e47d6a0b71a5e203f3edae6a9f5dbecb4f48
7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/1e1c44c3-a17c-450b-92ae-899a888bed92/
SH256 hash:
4ba77cfbbb82546697b641564f3ff130e520d0bdde7dac7baf74cf46b40a9b38
MD5 hash:
9029e47680f827bcde6141a7bb31552e
SHA1 hash:
ac5fd046e9914ddf15bc755d3fed50d88a665464
Link:
https://www.unpac.me/results/1e1c44c3-a17c-450b-92ae-899a888bed92/
SH256 hash:
da76e593741a8de8161d54a386d09a3ce48e8a9d687f572d6f781620a8fa585d
MD5 hash:
9c17e628323f68e0142a28e89e756e34
SHA1 hash:
80fe558a8f22804524122544f457e889efc912fc
Link:
https://www.unpac.me/results/1e1c44c3-a17c-450b-92ae-899a888bed92/
SH256 hash:
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
MD5 hash:
9d4b5da7765d431b11ccd9a72cadf2aa
SHA1 hash:
152ecaa7b1afc0c3a5fc57a20e5fc2fc4dcba5f3
Link:
https://www.unpac.me/results/1e1c44c3-a17c-450b-92ae-899a888bed92/
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/4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e

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
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Rule name:Skystars_Malware_Imphash
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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 4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/190091/

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