MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b
SHA3-384 hash: 4dde27a784dfc45855dfd70e3844d43903e4d79a47b3ac47200706dcbc64507799d23c933f6dfb658857cde277bfb645
SHA1 hash: 35af9a6c9732168adf4f999c209d804aaa819740
MD5 hash: 39fdeed72837845622dda9dfcd9e4650
humanhash: south-hot-iowa-muppet
File name:39fdeed72837845622dda9dfcd9e4650.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:837'124 bytes
First seen:2021-03-08 14:02:00 UTC
Last seen:2021-03-08 16:03:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 04d2817c9af4caf688e2f1cd10fe3c90 (1 x Formbook, 1 x Neurevt)
ssdeep 12288:vjmQ4lOdKgWsqxOCNsYob/x7l1XhOCXlaefu1dY/asgkK:vjmBlOdjWsqxOCNsYa/xHXhOCXlK1tUK
Threatray 4'107 similar samples on MalwareBazaar
TLSH F605E203E31B7068EB7010F632A9667F7D7219117B04B3F74AA35096F9D1BD22AB6C19
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://5.206.227.81/private/slim.exe
Verdict:
Malicious activity
Analysis date:
2021-03-08 10:30:34 UTC
Tags:
opendir loader trojan formbook stealer
Link:
https://app.any.run/tasks/dcaa0dbe-7a7a-4250-ba16-7e6bc467bb25

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/122794/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.25554.10127.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Sending a UDP request
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/631343
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 364640 Sample: SrEU13ipEa.exe Startdate: 08/03/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 5 other signatures 2->41 10 SrEU13ipEa.exe 2->10         started        process3 signatures4 49 Detected unpacking (changes PE section rights) 10->49 51 Tries to detect virtualization through RDTSC time measurements 10->51 53 Injects a PE file into a foreign processes 10->53 13 SrEU13ipEa.exe 10->13         started        process5 signatures6 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 16 explorer.exe 3 13->16 injected process7 dnsIp8 27 jiiniusaffiliate.com 162.241.226.136, 49727, 80 UNIFIEDLAYER-AS-1US United States 16->27 29 www.xwitsoft.com 194.124.251.21, 49732, 80 ENZUINC-US unknown 16->29 31 3 other IPs or domains 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 cmmon32.exe 16->20         started        signatures9 process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Gathering data
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-03-08 14:02:08 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yk4nm22z5k7qjww7hl4y4a7g6ovnh4uj5atikl5l3imiqy7lm6nq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06fa1b160e322bd7710c9110b1e4e873795b5c2680b8bbe70bbaf23484533459
Formbook
0953e54968ca9407a172c0a35a00d8b30ec603770809bbd2901a070e1b83b7f8
Formbook
11f06223417d6045acaa15cf7f5515d9afdfc23590c9cd021c2ae90a736bb6cd
Formbook
21ba0bed0b05a2ce68496e73a5c103fb5b815ac2c77e997f46e5d09666c1c978
Formbook
38272fb3fbcabee6980aeb4be9ae17147a7979dc415cb3cfbedc48cc298bbefa
Formbook
5386335debe7df955f9f8cf8e2fa0d5d482b197a3e24c59b0197eba5bf3d28b4
Formbook
57605921f72fd210ec256ed3010b59d111c6d3b9e49b9e830e06d6bddce83db4
Formbook
7c201535a28746b62adfa831cfccac096903f5b17ee83b8364fc890fa70a59fd
Formbook
92ddc88d7c1bde849c18747f4fcd526c240a81efe9c74ee1dcaa4a72ecc9ac3a
Formbook
ff3008594a20025a09ea2c83310d08f1c1aada6daa05b7a37ffefbe09cf8a2e7
Formbook
+ 4'097 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210308-zm1b5zr8wa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.proofnutriceuticals.com/private/
Unpacked files
SH256 hash:
404d1bbf4188c402b1ebeb0baf92098649c727d6448045ff4636be42901e1d59
MD5 hash:
190c3df4bd0e25c619f98f6e700100b0
SHA1 hash:
c632ad5b530415b007dcb3435a719331c384f23e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0b021a3c-3b3e-40d4-82bc-21f5d0a88bc1/
Parent samples :
5386335debe7df955f9f8cf8e2fa0d5d482b197a3e24c59b0197eba5bf3d28b4
57605921f72fd210ec256ed3010b59d111c6d3b9e49b9e830e06d6bddce83db4
c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b
SH256 hash:
c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b
MD5 hash:
39fdeed72837845622dda9dfcd9e4650
SHA1 hash:
35af9a6c9732168adf4f999c209d804aaa819740
Link:
https://www.unpac.me/results/0b021a3c-3b3e-40d4-82bc-21f5d0a88bc1/
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/c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b

File information

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

Web download

Formbook

Executable exe c2b8d66b59eabf04dadf3af98e03e6f3aad3f289e826852fabda188863eb679b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1043806/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/122794/

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