MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b. 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: 4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b
SHA3-384 hash: 93beae4aa480f66dd20f0346c332d79140961c69a9ae06fc414a853079385268a22891df14bc298aec6acbf7e7a469c7
SHA1 hash: c6e6cbfd319199e81fb69cfb02cab4b5cef8a36b
MD5 hash: b110c30cc03c3994e6c09b31b53331b4
humanhash: minnesota-oven-washington-maine
File name:INVOICE031822.exe
Download: download sample
Signature Formbook
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File size:1'154'560 bytes
First seen:2022-03-18 15:03:56 UTC
Last seen:2022-03-18 17:13:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:6VhXAwf9O2A1VYEMv0/YBW4zHMEDR2J1ROr0gJ2:6VlnVFE4pjMXJ1ew
Threatray 14'093 similar samples on MalwareBazaar
TLSH T1E035125069718BB1D57EA3BC901450C013F26073C4ABE75E6FEDB5DB2E72360843AA6B
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/252668/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1256.14550.6553.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Forced shutdown of a system process
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/62349f7f0cd58dbd92b737d0/reports/1ef8e0c4-6660-4d79-9216-d3ea843291f5/overview
Result
Verdict:
SUSPICIOUS
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/9c594d14-b5e1-4dcb-b573-1e30e80b0028
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/959619
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
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)
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: 592100 Sample: INVOICE031822.exe Startdate: 18/03/2022 Architecture: WINDOWS Score: 100 33 www.thesolsticestore.com 2->33 35 www.cannonbrookes.club 2->35 37 3 other IPs or domains 2->37 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 8 other signatures 2->51 11 INVOICE031822.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\INVOICE031822.exe.log, ASCII 11->31 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 15 INVOICE031822.exe 11->15         started        18 INVOICE031822.exe 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected process9 dnsIp10 39 alb-pl2-web.int-digi.com 5.101.39.11, 49799, 80 VIARTCOMRU Russian Federation 20->39 41 www.loliconfts.com 194.9.94.86, 49796, 80 LOOPIASE Sweden 20->41 43 www.bu3helo.com 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 WWAHost.exe 20->24         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 24->55 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-18 13:12:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iv4do5jvv4lxttuayr547on5sn2tklhstyu4ggyrt352fndgvyvq._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
374874898c5386561d60c3fae0482d1caee783f1096dda6742b1c073175a0a14
Formbook
3f0b6a2e50e39420c7b91acb35c08bb088c1ccaaa889491559a572dc481bf489
Formbook
4892e9b8ed5aa57661e3a1fd4bc2d48570cd416af12ab88bbade473ede45c1ed
Formbook
6fb859be1f19ec66d032758b38eade770aedc4f60b2341284ff407647980852b
Formbook
b36891ab4a7fa6be1680a65614dd5551a3fa8a89052c381a954601eedd82e62c
Formbook
c6a3fd36f07d97fb287fbac946ae8b8d12d1fcde36fa87395de79d59f0c3fb77
Formbook
d89f28603b8948dd7217e42366328a6e9bd05d59e5de67a4c39f207f8a520d43
Formbook
df1510f64189b49ffeb4630c74af81a86888114102b493f52b5ad1c1cb58d121
Formbook
+ 14'083 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:nhc5 loader rat
Link:
https://tria.ge/reports/220318-sfljlsaha4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
e2f7032b4dbda26a04d80b6fd8c8fcdea33e1e896cf2ff9907243719aec735a4
MD5 hash:
099c068ef856ca386ce5f9d911c5889c
SHA1 hash:
015613723971d5492c2d2819d74ceb5120ac2320
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/aa4d389f-3bb5-489c-b756-410b4641e1fd/
Parent samples :
fde58c8e44d682a5859d2666c413bcc1e70fc85d3e2ebeaa1fa9a524b33e3568
d89f28603b8948dd7217e42366328a6e9bd05d59e5de67a4c39f207f8a520d43
4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b
SH256 hash:
43b20b5dec0f0e3094d34fb96c28509cd738221e0ab879c9abe034df76b598c8
MD5 hash:
bf96362da20d8755345429b151eb5d1b
SHA1 hash:
f9babdd53cb208ad51d8c81eb0528871fc680922
Link:
https://www.unpac.me/results/aa4d389f-3bb5-489c-b756-410b4641e1fd/
SH256 hash:
0f1e8660328d233db506fd42a8f1b55bc11b66838977a905530fd42d7ea89dcb
MD5 hash:
881ecae37b48b97c0e590c5fcd2680ea
SHA1 hash:
e81efa76b2181fca265069600ea34f048aa2fdac
Link:
https://www.unpac.me/results/aa4d389f-3bb5-489c-b756-410b4641e1fd/
SH256 hash:
6ff21c090296e9fd3ec2b17e03e184e2396adf4013b2a4f4c9dea5bd7aff38f7
MD5 hash:
7c3fb3e3d91e338ae917c4cb46895e71
SHA1 hash:
ba577b8ccb3c6bbc5e9e3a838aec98859cd4dbaa
Link:
https://www.unpac.me/results/aa4d389f-3bb5-489c-b756-410b4641e1fd/
SH256 hash:
4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b
MD5 hash:
b110c30cc03c3994e6c09b31b53331b4
SHA1 hash:
c6e6cbfd319199e81fb69cfb02cab4b5cef8a36b
Link:
https://www.unpac.me/results/aa4d389f-3bb5-489c-b756-410b4641e1fd/
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/4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b

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
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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.

Malspam

Formbook

Executable exe 4578377535af1779ce80c47bcfb9bd9375352cf29e29c31b119efba2b466ae2b

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/252668/

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