MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592. 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 3 File information Comments 1
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SHA256 hash: 48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592
SHA3-384 hash: bf82a3b9794bdaf6c5ab8f1d4c5328fb033a80932771454514128f1a4501ad8bad82f53d3b924f20cc424459b87fefef
SHA1 hash: c0cfb7d0a8cfe1246d76b9c096345986a2da01f5
MD5 hash: 3831bff8f7ffe05dd6b4d64cf66e1b51
humanhash: hydrogen-nuts-arkansas-oklahoma
File name:3831bff8f7ffe05dd6b4d64cf66e1b51
Download: download sample
Signature Formbook
Create hunting rule
File size:568'832 bytes
First seen:2021-11-09 12:58:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:28u2GoyEvgOGyV6fJy/mjgPDjyEjjxi8rO2c1I1:8oybDK6AvyExrYI1
Threatray 11'060 similar samples on MalwareBazaar
TLSH T133C4BF52652457F2C4E18BBBBF63B37087748D861D1FCB2249A8F36C497AAE09E17443
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/204497/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.37502.10052.27720.UNOFFICIAL
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Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618a7078a00afa9663a1ea68/reports/f9021ad5-d214-40a1-8f70-d6fbeefe28fa/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34f15a09-2e39-4563-a297-7caa4217d8f7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/885988
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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: 518461 Sample: qK5EWrZL4S Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 34 www.poeticdaily.com 2->34 36 poeticdaily.com 2->36 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 9 other signatures 2->48 11 qK5EWrZL4S.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\qK5EWrZL4S.exe.log, ASCII 11->32 dropped 14 RegSvcs.exe 11->14         started        17 RegSvcs.exe 11->17         started        19 RegSvcs.exe 11->19         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected 68 Tries to detect virtualization through RDTSC time measurements 17->68 process8 dnsIp9 38 www.preose.xyz 66.29.131.146, 49847, 80 ADVANTAGECOMUS United States 21->38 40 www.paypal-caseid521.com 21->40 50 System process connects to network (likely due to code injection or exploit) 21->50 52 Performs DNS queries to domains with low reputation 21->52 25 wlanext.exe 21->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-11-09 09:04:26 UTC
AV detection:
28 of 45 (62.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jcsv5a5mxcv67266cyur2kqct4nfiag6jz3qnjtqrydmusg6swja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
6b808cf78989a505d346c7a9e3d8d571cec2c21fe0ef9b3c1f5e04bbad6be3c2
Formbook
7c0ab1d837684e8d37e75578f4821e25d7729cb9d3739f397cabbb9c95f2ddae
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
922015577a3e960d298f4abfe78c31146587b6e37e5c96f629cfd9b937d368f2
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
c781169f80930851f2174df529d1aaba061c45fd7ef90c5059a7c513bfda3414
Formbook
+ 11'050 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nk6l rat spyware stealer trojan
Link:
https://tria.ge/reports/211109-p7hp9afce4/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.rthearts.com/nk6l/
Unpacked files
SH256 hash:
e24ffd2ae582c20b1b6155377f5b31cc7eba94f214fecbdeffa3d5b5c42f63fe
MD5 hash:
46e5cfa195b87ce2d352b9985bc03fe8
SHA1 hash:
4e058350d01b3445f41cf671603a6b507d2b6dd5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d01afedf-7e60-4454-a5af-fdfb69ddda5e/
Parent samples :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 hash:
110a28b39b1e0840684110fa77a580effce50755cb865ce9df566f1fff308d05
MD5 hash:
17d644e87b9923fb2a0ed51e7594d82f
SHA1 hash:
863600e4908ebd4ed26285e210d983d04399e600
Link:
https://www.unpac.me/results/d01afedf-7e60-4454-a5af-fdfb69ddda5e/
SH256 hash:
a65ac8aadbd1e312df808e1e3f92690b6a2bc266343041f8d67d54b205a20230
MD5 hash:
e99efbcd7069d0d50456d476bf2d24a2
SHA1 hash:
3edb11e780dcae821f95d93c8f63ab6053c356e7
Link:
https://www.unpac.me/results/d01afedf-7e60-4454-a5af-fdfb69ddda5e/
SH256 hash:
48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592
MD5 hash:
3831bff8f7ffe05dd6b4d64cf66e1b51
SHA1 hash:
c0cfb7d0a8cfe1246d76b9c096345986a2da01f5
Link:
https://www.unpac.me/results/d01afedf-7e60-4454-a5af-fdfb69ddda5e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
Link:
https://yomi.yoroi.company/submissions/48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592

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
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 48a55e83acb8abefebde16291d2a029f1a5400de4e7706a6708e06ca48de9592

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1769323/
Cape
Cape
https://www.capesandbox.com/analysis/204497/

Comments


Avatar
zbet commented on 2021-11-09 12:58:03 UTC

url : hxxp://f0597568.xsph.ru/jf.exe