MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792. 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 5 File information Comments
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SHA256 hash: 771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792
SHA3-384 hash: 2e03478d539f2e0e07cb56f12505347bd216701f508ce3d1758e41586045cc4508bd8dfa9f0381b9d39ed2ecb8489641
SHA1 hash: cca010f2628921efddb0f4e67ca8df2b54706f6a
MD5 hash: a5c2761a7fcad737de45a1416c827bda
humanhash: nevada-stairway-double-jersey
File name:yeni sipariş pdf 6890xxxx.exe
Download: download sample
Signature Formbook
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File size:1'333'248 bytes
First seen:2021-08-02 12:35:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:2qWX76DOBfx8Dgyfx8Dgj0nioCXWi1CmqdMZnAjHyNwDZu2L:OX76k58Dgy58DgeitXVCJqAjHyCZ/
Threatray 6'071 similar samples on MalwareBazaar
TLSH T1F255E09A7540DEBBD61C23B55114D88052ADA815C227FBEFBE7221B223E1B7A4F14CF1
dhash icon b271e8e4d4ccf070 (22 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
yeni sipariş pdf 6890xxxx.exe
Verdict:
Malicious activity
Analysis date:
2021-08-02 12:36:18 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/6e416fe6-ec1f-46ec-a98a-8195ba444e23

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.DLO-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Result
Verdict:
UNKNOWN
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:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d9b49e50-f584-46f7-a174-259d659ab383
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825499
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 457911 Sample: yeni sipari#U015f pdf 6890x... Startdate: 02/08/2021 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 8 other signatures 2->49 10 yeni sipari#U015f pdf 6890xxxx.exe 7 2->10         started        process3 file4 31 C:\Users\user\AppData\...\geAmYJYNxBwXp.exe, PE32 10->31 dropped 33 C:\...\geAmYJYNxBwXp.exe:Zone.Identifier, ASCII 10->33 dropped 35 C:\Users\user\AppData\Local\...\tmp8B46.tmp, XML 10->35 dropped 37 C:\...\yeni sipari#U015f pdf 6890xxxx.exe.log, ASCII 10->37 dropped 13 RegSvcs.exe 10->13         started        16 schtasks.exe 1 10->16         started        process5 signatures6 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 2 other signatures 13->65 18 explorer.exe 13->18 injected 22 conhost.exe 16->22         started        process7 dnsIp8 39 www.mantra613.com 18->39 41 mantra613.com 34.102.136.180, 49772, 80 GOOGLEUS United States 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 24 wlanext.exe 18->24         started        signatures9 process10 signatures11 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792/
Threat name:
ByteCode-MSIL.Trojan.AgenteslaPacker
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Status:
Malicious
First seen:
2021-08-02 07:55:18 UTC
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o4n5oerimjwrjyij23zbkovdsnpaf4z3cwj73wsc5gptydjzy6ja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02230fb80db0fe0055730a0af8b3a0c66a578b2c315206053b80bae250c5561d
Formbook
1e716fc850ee142cf712e56d074ee9b6a3855014612513bb0f447fab5b8c9fc8
Formbook
398e6661f5ca757d0d7c777a0ed8ca1481b5c2df810008164e1f51deefc2ab48
Formbook
3d10f4aa567f3d3c63bff345a5935ebe6365ff607d79155bdce2bc2d852b6f7f
Formbook
68fd922afd4b980e00af527f2e2d6bbeed59ec1508c089370d64081a5532f3f2
Formbook
71cb97b67ebcc50a0bef217b3ca9591cfa49f6b8c8d11ee9952c2cde0b7b6a51
Formbook
818b8b831f3c774e034e2794f1eae71f62f5388355916e948b472cfdac7f5508
Formbook
852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac
Formbook
abb5b9e1916667c4fd6aee3c478f57b92607b0378cc3d71c4640555562e359ab
Formbook
d3b19cf0506617e6ac964656ebfe51f1c3066337b66bfdb48bd31b44ff61e7fb
Formbook
+ 6'061 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210802-dlrlhny6rj/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.dtcu0ng.com/mynd/
Unpacked files
SH256 hash:
196e6ff5648f8a896ea973bee63df86561d3eae446364a755e3a6763009bbf31
MD5 hash:
27be933b22238d68c4cb7b689dcee836
SHA1 hash:
a9ad9e8a33ba0b1b45ab44ba3d6282dd157b5b84
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/b5569c5f-58c9-47dc-9753-b54b9cc53767/
Parent samples :
771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792
d0e7564b77139d48cd4a4a89fc18bf2ec9842d73bc653ceb004849ed3c49f216
ba01aa9cb72e74474273788a5c1d83693c3a504e1aad67bed7515afb40a34101
5c4023944c61d2985cc5c50811481eb3cd64d4e3caba1e4f96d8fcc7adf7c72a
SH256 hash:
c20f254747a589eab28c3487bdd1cead563b3be634f0e52f7bf52b421b494e1d
MD5 hash:
f96ed65cc072430788decee40032644e
SHA1 hash:
8e308580bc53aec323a8373524d4eaac831ab0c4
Link:
https://www.unpac.me/results/b5569c5f-58c9-47dc-9753-b54b9cc53767/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/b5569c5f-58c9-47dc-9753-b54b9cc53767/
SH256 hash:
771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792
MD5 hash:
a5c2761a7fcad737de45a1416c827bda
SHA1 hash:
cca010f2628921efddb0f4e67ca8df2b54706f6a
Link:
https://www.unpac.me/results/b5569c5f-58c9-47dc-9753-b54b9cc53767/
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/771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792

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:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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 771bd71228626d14e109d6f2153aa3935e02f33b1593fdda42e99f3c0d39c792

(this sample)

  
Delivery method
Distributed via e-mail attachment

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