MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4
SHA3-384 hash: 961fbed3a06bf6603cbad4848a9bf36ddb2ce3fa49ab7a23e3f4be7ba51e362cbb71aac8083d413f4d496166d5c3a6db
SHA1 hash: f33ddffc223c9afa4e226d3567b990a8e44828e6
MD5 hash: a80e73a824b655491f54278b7a29467d
humanhash: east-fourteen-april-quebec
File name:kayx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:432'640 bytes
First seen:2020-11-20 14:51:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:2k6/GQOb8Jv8lhFf3cbXPFF7pnWtZBkPsMQ3GYYm5O3iMEbSpchQZd/l:2f/GDAJEn9crPFFFnWvLNBbSpZdd
Threatray 2'993 similar samples on MalwareBazaar
TLSH 4A94E014E16DFEE1E1994AFB50A9A2E06130E32AE08DC60D34F5EE3D18773C66591DCB
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/544256
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Injects a PE file into a foreign processes
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)
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
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 321226 Sample: kayx.exe Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 43 www.amtpsychology.com 2->43 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for dropped file 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 6 other signatures 2->57 11 kayx.exe 1 4 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\firefoxe.exe, PE32 11->37 dropped 39 C:\Users\...\firefoxe.exe:Zone.Identifier, ASCII 11->39 dropped 41 C:\Users\user\AppData\Local\...\kayx.exe.log, ASCII 11->41 dropped 67 Detected unpacking (changes PE section rights) 11->67 69 Tries to detect virtualization through RDTSC time measurements 11->69 71 Injects a PE file into a foreign processes 11->71 15 kayx.exe 11->15         started        18 kayx.exe 11->18         started        20 kayx.exe 11->20         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 22 explorer.exe 2 15->22 injected process9 dnsIp10 45 jibenentreprenad.mobi 184.168.131.241, 49744, 80 AS-26496-GO-DADDY-COM-LLCUS United States 22->45 47 www.jibenentreprenad.mobi 22->47 49 2 other IPs or domains 22->49 59 System process connects to network (likely due to code injection or exploit) 22->59 26 mstsc.exe 22->26         started        29 firefoxe.exe 22->29         started        31 firefoxe.exe 22->31         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 26->61 63 Maps a DLL or memory area into another process 26->63 65 Tries to detect virtualization through RDTSC time measurements 26->65 33 cmd.exe 1 26->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 12:58:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xxgrhk655whu64e7wkepw6fuv77uq2cuwpvhrljxruisecrrypca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
048a4bdb5c21a62e9028370b06b2804aaeb3b85b2446f5c47ff3fb3e7f676be8
Formbook
15c7df3fd38078bfe8814c09bc69279c91ae32fc7178912998b6eca91f4d82b8
Formbook
15d71d7a0b659fa5429a2e96d9185dad6aca0fe201dfa802b7fd0ef2b8211c76
Formbook
1ac4419c00800098d644ca6b673934679b27f8b8840e5c4a993b47c49033d61c
Formbook
797dd6c7fd666d180638505d42d8803dffa37e8b76104fe77b21a680524242e7
Formbook
a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028
Formbook
c5eddcaa83e4167df259033ee45a3624c5a700877aac6bc54dd46d1a3a1aacbd
Formbook
d5693be3b4e0d78485c00d409aedbe5cf18fd22c413fac48b44a4eaa0bbda668
Formbook
e0f3cc45f5f9d758b91fc99dbc5b838e8658fa28bad234825318e18d11806681
Formbook
f4e7a822d33c454237c1d3d8352ca27953875dafcc0bb13ec52c649a8e0e9535
Formbook
+ 2'983 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/201120-jwwlxklmw6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.pamforprogress.com/bg8v/
Unpacked files
SH256 hash:
bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4
MD5 hash:
a80e73a824b655491f54278b7a29467d
SHA1 hash:
f33ddffc223c9afa4e226d3567b990a8e44828e6
Link:
https://www.unpac.me/results/e25308a7-130f-4af9-bbc1-22f8fa28c5f7/
SH256 hash:
2af9d2385ddd2bb15ea511fea6e7b822908cdade25eb3582284fc8d369ad3426
MD5 hash:
460872c6e2df977e0629cde2948f9bd1
SHA1 hash:
13bc23a7e1118b0f1c6a9f8806f45c23c9636204
Link:
https://www.unpac.me/results/e25308a7-130f-4af9-bbc1-22f8fa28c5f7/
SH256 hash:
7fb2a96ef569b86a190f291718f474a928df4ef0210c8561436502454bcf7c32
MD5 hash:
6c791a5afe5ae9fea0cd4b29c61f970a
SHA1 hash:
86b45807b5b266dde43c26785b03b072aa61b5ae
Link:
https://www.unpac.me/results/e25308a7-130f-4af9-bbc1-22f8fa28c5f7/
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/e25308a7-130f-4af9-bbc1-22f8fa28c5f7/
SH256 hash:
bccb3be67d2957bc2eb77c8ce97e5da497aff5cad5409b079a47c95effa2365e
MD5 hash:
d10fd6f38fe7ae266a33af71103268a4
SHA1 hash:
e1794d7a3f419782f8977572d6ce3345d688999b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e25308a7-130f-4af9-bbc1-22f8fa28c5f7/
Parent samples :
1ac4419c00800098d644ca6b673934679b27f8b8840e5c4a993b47c49033d61c
d5693be3b4e0d78485c00d409aedbe5cf18fd22c413fac48b44a4eaa0bbda668
bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4
1878871ffe22529eff69bc07e62350532cbd2a830874bc090c9c72c2b8742a24
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bdcd13abdded8f4f709fb288fb78b4afff486854b3ea78ad378d11220a31c3c4

File information

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

  
Delivery method
Other

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