MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc. 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 12 File information Comments
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SHA256 hash: dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc
SHA3-384 hash: 2009083ea65f81779831d6864e669f5a9b569c78d06c1a45fd4a35a6cdf630f920345836f8b1e36d362ac2f976beb77b
SHA1 hash: 5122f9be87149ad355f0cbf33ca3ae603432b5d2
MD5 hash: da83ec739bfe2751dadf73b88a2d4de3
humanhash: enemy-vermont-hotel-blue
File name:SecuriteInfo.com.Win32.AdwareX-gen.18525.27375
Download: download sample
Signature Formbook
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File size:318'091 bytes
First seen:2023-10-04 05:31:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 39 x GuLoader, 22 x RemcosRAT)
ssdeep 6144:LnPdudwDzV7hvMwtSPqGas8x0UAHsvEt57FFUxgbddgAcuWm5M2:LnPdvhsZyAEEvFFUxgbRM2
Threatray 58 similar samples on MalwareBazaar
TLSH T1FE641298B2588C93ECA70A30583B97365FF5AE3954B1E61F5788F7182933201DD8E397
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
354
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.AdwareX-gen.18525.27375.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Launching the process to change network settings
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Likely Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed remcos shell32 threat virus
Link:
https://www.filescan.io/uploads/651cf8d5be42b2ac8e59cfe9/reports/c1dd130b-dd4f-44cf-a3b5-4a85a7c33a2b/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc
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/a588a91a-2bc7-4356-9f19-77c34cb79a2a
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319186
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 domain / URL
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1319186 Sample: SecuriteInfo.com.Win32.Adwa... Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 9 other signatures 2->55 11 SecuriteInfo.com.Win32.AdwareX-gen.18525.27375.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\bdmuxzu.exe, PE32 11->31 dropped 33 C:\Users\user\AppData\Local\Temp\fnpwl.ufx, DOS 11->33 dropped 14 bdmuxzu.exe 11->14         started        process5 signatures6 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Tries to detect virtualization through RDTSC time measurements 14->69 17 bdmuxzu.exe 14->17         started        process7 signatures8 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Sample uses process hollowing technique 17->45 47 Queues an APC in another process (thread injection) 17->47 20 explorer.exe 5 1 17->20 injected process9 dnsIp10 35 b2b-scaling.com 15.197.142.173, 49846, 80 TANDEMUS United States 20->35 37 sarthaksrishticreation.com 119.18.49.69, 49843, 80 PUBLIC-DOMAIN-REGISTRYUS India 20->37 39 15 other IPs or domains 20->39 57 System process connects to network (likely due to code injection or exploit) 20->57 24 svchost.exe 20->24         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc/
Threat name:
Win32.Trojan.Generic
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Status:
Malicious
First seen:
2023-10-04 04:19:09 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 37 (56.76%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3smzviw3qtspsebcxyikkxuxdre5vauwaat3osbliscw73sg7hga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
247c8156cf06c5d9dec7d5fa0b158339110b556d41b0750bff34d36086554746
Formbook
328dcb82382c5fb34a7f5a4892cfbdeec6e990551f3ebdcdcfec98e70b0b0327
Formbook
3657bbc56c6f5a8bc8326ee2eb13f384bd89697fa29175436a28601b47f945ce
Formbook
8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8
Formbook
9bc85e2d8b9379ab4b4a7a165602aa01a3251bd131a10d3cc67f494c3a46aced
Formbook
b835220d18074195e2df569e8088470b7f400c334aef1dd54dfe30e2019dab7a
Formbook
be001461acb26523b913f93761b14f56fc7dd7f256e90ae53b40f0b40dd859b7
Formbook
cb86e51e2bce6f338ae6a158312edc480f98e011c775dcf1c2f9c8ee1b444276
Formbook
f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622
Formbook
f3c99b21d43e967be5b3e53e70050b9d6dce181fe5415f9825b512850ecb0b52
Formbook
+ 48 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Link:
https://tria.ge/reports/231004-f8aatsbc39/
Behaviour
Gathers network information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
5ab248198de9803f51b17aaa8401a293219f8199699f6ebe6152ad33c7b11a8b
MD5 hash:
4b59d30a0dfe2ef576a684738840836f
SHA1 hash:
2648e01c6e47e0878df86d07e6171de62c2bf6db
Link:
https://www.unpac.me/results/fa515ce2-b22c-4de6-b309-c673992cbf1e/
SH256 hash:
dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc
MD5 hash:
da83ec739bfe2751dadf73b88a2d4de3
SHA1 hash:
5122f9be87149ad355f0cbf33ca3ae603432b5d2
Link:
https://www.unpac.me/results/fa515ce2-b22c-4de6-b309-c673992cbf1e/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dc999aa2db84/report/overview.html
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/dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc

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:Check_OutputDebugStringA_iat
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Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants

File information

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

Web download

Formbook

Executable exe dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2715646/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2715727/
  
URLhaus
https://urlhaus.abuse.ch/url/2716195/

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