MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0. 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 3 File information Comments
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SHA256 hash: 55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
SHA3-384 hash: 90e58ecfc21194786e142557f1a0a6f15c2c02f8e29e041f51d645475d41f1ef72a77ca6903eaf656b4578824476b2c0
SHA1 hash: 11fa85ebc244882ba09460ac105434eeb0e91ae7
MD5 hash: 526abf980ad7aefdc99416697994bd56
humanhash: shade-sink-grey-oregon
File name:526abf980ad7aefdc99416697994bd56.exe
Download: download sample
Signature Formbook
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File size:421'376 bytes
First seen:2021-11-19 08:41:28 UTC
Last seen:2021-11-19 10:35:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:zAC3yzaytj2s+axugKZKEO5ng277tLB+8O0J4KC0Umg8xzlNcT9z1Oy:Mx91+axugnrP7Z1ep0UIxncT9c
Threatray 11'369 similar samples on MalwareBazaar
TLSH T1B09412593AE80B66C67F0BFC46F9410123F6F905BA32FB6D6E8AB4ED19633444502763
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
526abf980ad7aefdc99416697994bd56.exe
Verdict:
Suspicious activity
Analysis date:
2021-11-19 09:17:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c9145c57-8457-4258-9e12-470a5c7078c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.45775.19618.9096.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6197635f2695a62af9f3aee5/reports/30169945-eac8-4e72-b2f0-f7e40cb716bc/overview
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:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9128093d-869b-4225-9f5d-07acc096d409
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/892525
Signature
.NET source code contains potential unpacker
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 524996 Sample: MwdK1RhmQf.exe Startdate: 19/11/2021 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 5 other signatures 2->39 10 MwdK1RhmQf.exe 3 2->10         started        process3 file4 29 C:\Users\user\AppData\...\MwdK1RhmQf.exe.log, ASCII 10->29 dropped 49 Tries to detect virtualization through RDTSC time measurements 10->49 51 Injects a PE file into a foreign processes 10->51 14 MwdK1RhmQf.exe 10->14         started        signatures5 process6 signatures7 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 Queues an APC in another process (thread injection) 14->59 17 explorer.exe 14->17 injected process8 process9 19 chkdsk.exe 17->19         started        signatures10 41 Self deletion via cmd delete 19->41 43 Modifies the context of a thread in another process (thread injection) 19->43 45 Maps a DLL or memory area into another process 19->45 47 Tries to detect virtualization through RDTSC time measurements 19->47 22 explorer.exe 2 161 19->22         started        25 cmd.exe 1 19->25         started        process11 dnsIp12 31 192.168.2.1 unknown unknown 22->31 27 conhost.exe 25->27         started        process13
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2021-11-19 08:42:06 UTC
AV detection:
9 of 44 (20.45%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
Formbook
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
Formbook
76cd5f994be53f3f24e2b2018263b9ab582e84870ee8d24f38c6d11adae3688c
Formbook
926caa64ebe870209f7f1befeac9be7fab73f0bf2b07826d60ff5d752167f13f
Formbook
972f5e016ffc306524d7083a5a5058ba8b5fc60f3db9f3c0915db59c0523a487
Formbook
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3
Formbook
d95ea981292e062e17b671022beaf00ee5c5ad6fbebf092096de7f1ecf27c4c1
Formbook
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
Formbook
eec7134cc1487d8774af92e127422beaadfda308d32039afaec0c815ca70dc5c
Formbook
fd2a0d7069cb20517cf2fafcdc12a7d3bd253a3f15d3bd2a66794acdfa928ddf
Formbook
+ 11'359 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cy88 rat spyware stealer trojan
Link:
https://tria.ge/reports/211119-kl2h1scgh8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.jamesobrien.school/cy88/
Unpacked files
SH256 hash:
b9da25075c3e27a81cdf9207fbd574f974b87ec847bfcdef59d8bd8fade072e0
MD5 hash:
98574b67657a1644171b3038cfd9561b
SHA1 hash:
6fcd3a68800350b0152f995b8e79c15b09eb44d5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/40a937fb-edfd-418e-a55c-5aa5c72a9257/
Parent samples :
a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
SH256 hash:
cc5c5860e83b708cd158454165cbeb714767119946049de5aa7677685be75c14
MD5 hash:
83cbea4dec6e5b64a85ee9b6f9ff7598
SHA1 hash:
5c1d12b792c32ba73b7bf2634da5e4d9fbcd7d4e
Link:
https://www.unpac.me/results/40a937fb-edfd-418e-a55c-5aa5c72a9257/
SH256 hash:
2d03c40955467f9f19c1985f108e8799c7dbab994c3ed66211c79f7b6bf6032f
MD5 hash:
995dca4ec8aa1ff62e19f44d71815915
SHA1 hash:
2ae75dfa3652a8c47da0b335caaba08daaf17994
Link:
https://www.unpac.me/results/40a937fb-edfd-418e-a55c-5aa5c72a9257/
SH256 hash:
55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
MD5 hash:
526abf980ad7aefdc99416697994bd56
SHA1 hash:
11fa85ebc244882ba09460ac105434eeb0e91ae7
Link:
https://www.unpac.me/results/40a937fb-edfd-418e-a55c-5aa5c72a9257/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/55e7f104009a/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/55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0

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.

Web download

Formbook

Executable exe 55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1763345/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/207561/

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