MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8
SHA3-384 hash: adbb0a438dda3004e8df90f1a1859a70f13e656126791ec9b5dc48f18c6f2ac68650862d5000d9ca42f90ed11bcb450e
SHA1 hash: ca2227f6b1302b1958449e8a27d9ae2f70eca7e2
MD5 hash: b897bfd728264f102e07e613a01657da
humanhash: alabama-zulu-wisconsin-undress
File name:b897bfd728264f102e07e613a01657da.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:351'744 bytes
First seen:2021-10-31 15:10:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:YVPMX/1X9Fh9qiknURh2FPPN62zZnuMu5v8juprSpOANFJTTBq1JEQ:gEvd3h9qiknU+ZPN62zZnu15vSuFSgAk
Threatray 10'980 similar samples on MalwareBazaar
TLSH T14374231B73FACA56DBAB52F434A54610567EB08E45B1E21D9E1932C6DB03B8C1703EF2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b897bfd728264f102e07e613a01657da.exe
Verdict:
Malicious activity
Analysis date:
2021-10-31 15:15:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/69cf68c5-346f-470d-8e1b-59ac962ef905

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.6999.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the 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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eff0ad7e-fe8d-43d0-a951-7d2133281132
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/880027
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 512461 Sample: E8xV1Y6Cxs.exe Startdate: 31/10/2021 Architecture: WINDOWS Score: 100 31 www.hotfruits.xyz 2->31 33 hotfruits.xyz 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 47 7 other signatures 2->47 11 E8xV1Y6Cxs.exe 3 2->11         started        signatures3 45 System process connects to network (likely due to code injection or exploit) 31->45 process4 file5 29 C:\Users\user\AppData\...8xV1Y6Cxs.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 E8xV1Y6Cxs.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.homestylewood.com 18->35 37 www.6fapp142.com 18->37 49 System process connects to network (likely due to code injection or exploit) 18->49 22 mstsc.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 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 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-10-31 09:17:06 UTC
AV detection:
20 of 44 (45.45%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1ee20ec28c5649c69a2cab43e7f7e99d9f6c839cc5ae5ed2e279281682fe3b53
Formbook
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
Formbook
2c74b3cf30c4c89fcd341129917f850be3faf7f7f91646545e7d65106a30dfb0
Formbook
2eec14d00309c58144cc8234ebc9c5c4c9d81a3511f45830e50a3929fe2b158a
Formbook
4bdd5968c006f979c68ba686942695680950574bba495136b26bdd166d537ede
Formbook
a68cb3bf1d9d41e29fcf2e4391e827591e58783cea5a13fe95403fb6b3429b5d
Formbook
c781169f80930851f2174df529d1aaba061c45fd7ef90c5059a7c513bfda3414
Formbook
e83ce530468ceacafc364791ce8de4cdc2b456cb0df25b93ac4055a99b031702
Formbook
fa5502396dc7ec0fc5508d901eb8b3e555558cdbaff338a1911db0edd4563b78
Formbook
+ 10'970 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ad6n rat spyware stealer trojan
Link:
https://tria.ge/reports/211031-skleeagah6/
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.didimthebestkuafor.com/ad6n/
Unpacked files
SH256 hash:
def784268365dae11e6a6b197ec699791763566672fbcec5ee0e6ab084b0ea5d
MD5 hash:
9b08e9c56068008f5893fd4f7b6bf573
SHA1 hash:
8c88a1c68455d6f7be3d275bd9ac8f4fd2a09bde
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a9fe47dc-6501-4b85-8c6a-e6f51f9bc6ed/
Parent samples :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 hash:
723389cc2513276f151cd9188be448780e88f2f0d91b4e769f3c02d1d65742e4
MD5 hash:
d452db076c14612521946f20cfb7fbc2
SHA1 hash:
c5aa019fcfbbfe97bc32890aac6535c3467ae32b
Link:
https://www.unpac.me/results/a9fe47dc-6501-4b85-8c6a-e6f51f9bc6ed/
SH256 hash:
4d1ee061c817ea30ca4e461a4f44388662c1c1c2775be2b323858ddbc1679b35
MD5 hash:
1b6d3d31872537cc611ff4322ffc1099
SHA1 hash:
0108adafb207ce044bfb3f7933da45594c545bee
Link:
https://www.unpac.me/results/a9fe47dc-6501-4b85-8c6a-e6f51f9bc6ed/
SH256 hash:
5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8
MD5 hash:
b897bfd728264f102e07e613a01657da
SHA1 hash:
ca2227f6b1302b1958449e8a27d9ae2f70eca7e2
Link:
https://www.unpac.me/results/a9fe47dc-6501-4b85-8c6a-e6f51f9bc6ed/
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/5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 5dc5fd5aeb9e4902ab1efa0d1e058b2dfabfd0888be4df553a19c66a0c008de8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1705792/
  
Delivery method
Distributed via web download

Comments