MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40872d476cb128d49b27f28680b5154cd9f3bf786b57cff13d627f35a2ee3701. 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 3 File information Comments
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SHA256 hash: 40872d476cb128d49b27f28680b5154cd9f3bf786b57cff13d627f35a2ee3701
SHA3-384 hash: 05f7d1873177aaeb5bf11ec0afd5e16d97c3f69d60413822e2085ca8191bca79175cad48d9ddd3b013b5eda92c66f23e
SHA1 hash: 07a13c0be9613f6ad0c4914a66e466394a56638a
MD5 hash: 209fbc8b761824af543aa3085b0f1bc4
humanhash: mirror-one-violet-kansas
File name:RFQ_LISTaugust2315.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:717'312 bytes
First seen:2021-08-31 13:39:08 UTC
Last seen:2021-08-31 13:52:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:/KLqdhTQ1AHUk9vwDQ6HncvEEupZoJosGtOKf:S2L8i0kU1pZJVf
Threatray 8'646 similar samples on MalwareBazaar
TLSH T146E41B7F19BDA2278175C6F58BE78827F0008B6F3110696476D347264322A7AB5F336E
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/184220/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader41.53008.20171.636.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1b17f69d-08ae-4848-9a11-dbaf8957b4f7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842655
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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 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: 475086 Sample: RFQ_LISTaugust2315.exe Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 35 www.zfezx08.com 2->35 37 zfezx08.com 2->37 39 2 other IPs or domains 2->39 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 10 other signatures 2->53 11 RFQ_LISTaugust2315.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\RFQ_LISTaugust2315.exe.log, ASCII 11->33 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 Injects a PE file into a foreign processes 11->67 15 RFQ_LISTaugust2315.exe 11->15         started        18 RFQ_LISTaugust2315.exe 11->18         started        20 RFQ_LISTaugust2315.exe 11->20         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 22 explorer.exe 15->22 injected process9 dnsIp10 41 highlandwhiskycorp.com 103.7.8.203, 49728, 80 USONYX-AS-APUSONYXPTELTDSG Singapore 22->41 43 compro-online.com 82.98.135.44, 49720, 80 DINAHOSTING-ASES Spain 22->43 45 15 other IPs or domains 22->45 55 System process connects to network (likely due to code injection or exploit) 22->55 26 rundll32.exe 22->26         started        signatures11 process12 signatures13 57 Self deletion via cmd delete 26->57 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/40872d476cb128d49b27f28680b5154cd9f3bf786b57cff13d627f35a2ee3701/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-08-31 10:00:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 45 (40.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=icds2r3mweunjgzh6kdibnivjtm7hp3ynnl474j5mj7tlixog4aq._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
16f669b8657b76f78a71e28f4b475856eddccfd143f2128275212b338aca8620
Formbook
1b4d3e69b4e2e533522d48f27a0137e34b92b01e36d348c12f0df4371ed7d573
Formbook
1ba55b6d19b202f0a3fa11a7122a210ed0041074bf30fc754bbc87c1a793304b
Formbook
2d3642f2c997cdd1a84d283738cd6d09f321f681dbc26fab6cca262d59401e20
Formbook
5397f0168be76c7e5efee936d341eb359b9015af5e77631129dc0664105e9259
Formbook
8ea636d851faf7ce0769fbbe7856659d0eb6638353df90e0c93f461ac3a932be
Formbook
a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035
Formbook
ba16d80b218d269fcc8beb82c0c21b9533f5976fd2af0c873d5598e6f4e90307
Formbook
d07dcdf05ff20a2596f795af5fb57e9c599ab0dc6dfb8d536b22dcfe502d6cf3
Formbook
ea0398e9c644309652d60f4261c03ba7aa64bf8fddd4960c7e65fcb732af4530
Formbook
+ 8'636 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:�oww�rba{q�����adwgu� loader rat suricata
Link:
https://tria.ge/reports/210831-prmx2wz5vj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://�owW�Rba{Q�����AdwGu�
Unpacked files
SH256 hash:
713beb65d361943afb44a6fa904d16a9a3c5810c1b1607e46c8c7b216ad3e0a6
MD5 hash:
83aff3eb157998c4934752d1517ab1a2
SHA1 hash:
1734df7d8e030528e7aa011a9838012dfa231cce
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c875a18c-a9e8-4cc9-83f4-1abb7b9eb05a/
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/c875a18c-a9e8-4cc9-83f4-1abb7b9eb05a/
SH256 hash:
cf7abe20d7a1e9f2ce4c1261290fe5d3536fb73bff4bf3762f16f46cf3479775
MD5 hash:
73799ab8f6a560565e56d9e8d41f0b9b
SHA1 hash:
887df51fa6e9b62d3fa0e3597e3104ae4aaf77c7
Link:
https://www.unpac.me/results/c875a18c-a9e8-4cc9-83f4-1abb7b9eb05a/
SH256 hash:
40872d476cb128d49b27f28680b5154cd9f3bf786b57cff13d627f35a2ee3701
MD5 hash:
209fbc8b761824af543aa3085b0f1bc4
SHA1 hash:
07a13c0be9613f6ad0c4914a66e466394a56638a
Link:
https://www.unpac.me/results/c875a18c-a9e8-4cc9-83f4-1abb7b9eb05a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/40872d476cb128d49b27f28680b5154cd9f3bf786b57cff13d627f35a2ee3701

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/184220/

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