MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
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SHA256 hash: e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6
SHA3-384 hash: f1c64fe6b50250d01ffb447234164ac3046fd2ade4fd356b37c1733c0bacefd7289c36ce3a03ce5a5e80e970c35e249e
SHA1 hash: c4d25b17c64716f2e7558bd302cd901bd63757d8
MD5 hash: 721356bfa1f8c23d40f6b2ff77b55db0
humanhash: vegan-asparagus-edward-indigo
File name:583475.exe
Download: download sample
Signature Formbook
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File size:1'085'952 bytes
First seen:2021-10-27 14:27:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:SscL0U9tCbBOsVTy701/hSGbBSFEuCXrmKsr3S5NTA7CJzmZjeRaoNv3/etzWl/L:SoitzsJenEuaSC5dAMqZjeRah0/eSU
Threatray 9'467 similar samples on MalwareBazaar
TLSH T1F535081EB348BF97E13E5F35865F2C1893F196232231F6AB6DC84DD10588F894A1F52A
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200557/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.5457.7767.7456.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617961f49a5a1e91c5d75e52/reports/c8187f84-29de-4fb3-871e-345b7905f512/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c0318f5-4952-4d1e-8720-39679da912d6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/877812
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 510246 Sample: 583475.exe Startdate: 27/10/2021 Architecture: WINDOWS Score: 100 34 www.eeeptou.xyz 2->34 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Yara detected FormBook 2->56 58 5 other signatures 2->58 10 583475.exe 15 4 2->10         started        signatures3 process4 dnsIp5 42 www.google.com 142.250.185.228, 443, 49757 GOOGLEUS United States 10->42 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 10->30 dropped 32 C:\Users\user\AppData\...\583475.exe.log, ASCII 10->32 dropped 60 Writes to foreign memory regions 10->60 62 Allocates memory in foreign processes 10->62 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->64 66 Injects a PE file into a foreign processes 10->66 15 AddInProcess32.exe 10->15         started        file6 signatures7 process8 signatures9 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 2 other signatures 15->74 18 cmstp.exe 15->18         started        21 explorer.exe 15->21 injected 24 autofmt.exe 15->24         started        process10 dnsIp11 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Tries to detect virtualization through RDTSC time measurements 18->48 26 cmd.exe 1 18->26         started        36 appsdeals14.com 68.66.224.28, 49835, 80 A2HOSTINGUS United States 21->36 38 www.tinyhollywood.com 21->38 40 2 other IPs or domains 21->40 50 System process connects to network (likely due to code injection or exploit) 21->50 signatures12 process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-27 09:46:47 UTC
AV detection:
15 of 27 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5b3mdw4qof77bam7j7cxrlnm4yo6zwwwjfryg3v4tluyhxehuxla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
360f7adfb84151a958c2ab27dde89e01e84ceffd431864602fbba7120c8be990
Formbook
79043f2f23a008c67568fd1720f10911cfba7ba8008bd214599c6db49aa39791
Formbook
83806181eaf99abe4f92d4f5846837c73053239ec7412072913834e33721673c
Formbook
85eb901d5863c16a7526addfb18464967c45348aec3e1d1bf6014958fa4aff8f
Formbook
bcf09c801e101acbaa20ef272f86c7eac2c311bf20c6a5b6e245fc0b92be576e
Formbook
c4d1d6a9baaeb3802cfb9f7e21db83b85236844b62dc05f8ed4822e491703eb3
Formbook
+ 9'457 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:uat8 agilenet loader rat suricata
Link:
https://tria.ge/reports/211027-rsz24ahbdr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.eeeptou.xyz/uat8/
Unpacked files
SH256 hash:
e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6
MD5 hash:
721356bfa1f8c23d40f6b2ff77b55db0
SHA1 hash:
c4d25b17c64716f2e7558bd302cd901bd63757d8
Link:
https://www.unpac.me/results/fa8426c6-1ff2-493e-99c5-7c6fb87c49df/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e876c1db9071/report/overview.html
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/e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6

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.

Malspam

Formbook

Executable exe e876c1db90717ff0819f4fc578adace61decdad64963836ebc9ae983dc87a5d6

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/200557/

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