MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99
SHA3-384 hash: e71e8e9e715438170ba71d13b5f7f9d010ed28e9d587be2b30607c959a83c160ddb96ee441f5ae40d5207737d527cb60
SHA1 hash: 9e066a8e4e96dc48e12737c0a998bd708bb21713
MD5 hash: 9305a502a9989f1d7b68fb8cf0e14f60
humanhash: hotel-avocado-vermont-jupiter
File name:RFQ-Bid supporting Documents.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:773'632 bytes
First seen:2022-03-01 08:34:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:fEbOR/IHyGinQqCIhB0YjBZ9SI7Ki4+EKPnyThg3BVXCVgmoRjK2:ATd5YjH9ZvYhg3BZ0aK
Threatray 13'789 similar samples on MalwareBazaar
TLSH T198F4AE0438E65038F93A8BF1CAC0EBF1DB6EF221D44971F964000E559A45BBD895AEFD
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
193
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/245650/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/621ddac6b94fb38cb42ca958/reports/e8f50012-5b0c-409a-b671-9d2828dc28db/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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ebe706e7-ccce-4077-b4ca-53895b533f17
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/947938
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
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: 580416 Sample: RFQ-Bid supporting Documents.exe Startdate: 01/03/2022 Architecture: WINDOWS Score: 100 34 www.puntacanaluxuryrentals.com 2->34 36 store-images.s-microsoft.com 2->36 38 parkingpage.namecheap.com 2->38 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 8 other signatures 2->52 11 RFQ-Bid supporting Documents.exe 3 2->11         started        signatures3 process4 file5 32 C:\...\RFQ-Bid supporting Documents.exe.log, ASCII 11->32 dropped 14 RFQ-Bid supporting Documents.exe 11->14         started        17 RFQ-Bid supporting Documents.exe 11->17         started        19 RFQ-Bid supporting Documents.exe 11->19         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 21 explorer.exe 14->21 injected process8 dnsIp9 40 www.abffriends.com 173.239.5.6, 49757, 80 WEBAIR-INTERNETUS United States 21->40 42 www.thebankerchecklist.com 199.59.240.200, 49754, 80 ARYAKA-ARINUS United States 21->42 44 3 other IPs or domains 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 25 cmmon32.exe 21->25         started        signatures10 process11 signatures12 56 Self deletion via cmd delete 25->56 58 Modifies the context of a thread in another process (thread injection) 25->58 60 Maps a DLL or memory area into another process 25->60 62 Tries to detect virtualization through RDTSC time measurements 25->62 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-01 01:53:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=irrwybjdkpzjhpjtalfqqrhh4ow5pixjfgtd43gnv63jslvkh2mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2a7d77404a47a368e29147ecd69687338c3e0ebefb137d459b28ed0305420620
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
6e2c1783d043a360901610858e7469d1c667151d29e1cca0002db3bc131ccc37
Formbook
70c6fd4de902c8ccce31380698b123def84b4d209c8b824e1065349a5aee9de2
Formbook
83a48b4d9d6b7600a6c597af9bf03368bcf3a6a84be1c0f33f064eea3777d8e3
Formbook
9a597a7be3da23c4e2fe27e40a72a4b509fdb2959174380c673aae882e8163de
Formbook
c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8
Formbook
+ 13'779 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:pot0 loader rat
Link:
https://tria.ge/reports/220301-kg7jgahcd8/
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
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
196e6578f74d601b29261eecf19609fcf2b4534e1cef954006d5f898952599ed
MD5 hash:
0f9baee7daae03f659c624452df5e86e
SHA1 hash:
d12750e48185ac954851595cdac120f688b194e6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9d53b97a-2f15-48ba-aa3b-677d877fbbbe/
Parent samples :
a608c335a71c2d4e38ce67af529bf6e9bdc84555cdce0269eae7d5539fa33549
44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99
SH256 hash:
d91820793daee11d40cba283b6c31f7d69c16bae191c144dd7a19f84e0971454
MD5 hash:
da3804de9a418bb06be5ba152457272a
SHA1 hash:
ed44656405dbe4834655ba44a8f35d830ecaecec
Link:
https://www.unpac.me/results/9d53b97a-2f15-48ba-aa3b-677d877fbbbe/
SH256 hash:
860df8f1c62c05dd811f54e0535caf1072060eb3789abf807f4a2bc17658d106
MD5 hash:
53cd4b6ab07afb2c8ff7a5a71da1c203
SHA1 hash:
97a4ec4ebc44a1e99d9594a0f16b76ab46dcbb68
Link:
https://www.unpac.me/results/9d53b97a-2f15-48ba-aa3b-677d877fbbbe/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/9d53b97a-2f15-48ba-aa3b-677d877fbbbe/
SH256 hash:
44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99
MD5 hash:
9305a502a9989f1d7b68fb8cf0e14f60
SHA1 hash:
9e066a8e4e96dc48e12737c0a998bd708bb21713
Link:
https://www.unpac.me/results/9d53b97a-2f15-48ba-aa3b-677d877fbbbe/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/44636c052353/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/44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99

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: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.

Malspam

Formbook

Executable exe 44636c052353f293bd3302cb0844e7e3add7a2e929a63e6ccdafb6992eaa3e99

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/245650/

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