MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f. 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 2 File information Comments
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SHA256 hash: 8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f
SHA3-384 hash: 64bae53f7f1f347c29b184e17e31607f29356fa9a7639edf52b8aa577cc6ed46cdff20430339250dff5f2e29bdfc0834
SHA1 hash: 301909d4cf5f4a4f847ccc9378dd91a5e7f69659
MD5 hash: e5951c540578e55f51dd0495ebcb6e61
humanhash: harry-ohio-blossom-rugby
File name:aguerozx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:684'032 bytes
First seen:2022-01-21 13:12:35 UTC
Last seen:2022-01-21 15:14:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:61Z3NpQbbDhhUNkxFCaoEpftUAKtk7lhjq6+ievYF:WpQbPhG+xEarfVKg+6+ievYF
Threatray 12'830 similar samples on MalwareBazaar
TLSH T130E4DF4032F88B05D4BF8BFA5831409017BEBD1AA865E75F6D91B1DF0DB2B809B62753
File icon (PE):PE icon
dhash icon 1efef2c2e4a0e0e0 (16 x AgentTesla, 3 x Formbook, 3 x Loki)
Reporter info_sec_ca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/221468/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.37153.10801.10361.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
expand.exe ftp.exe obfuscated packed remote.exe shell32.dll
Link:
https://www.filescan.io/uploads/61eab163d32385db631532d7/reports/9e7d5ad9-7f46-473b-b6ea-ebe22ed38e16/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/19251f43-e99b-4f9a-9ce9-27c25bf7a070
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/925213
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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
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 signatures2 2 Behavior Graph ID: 557691 Sample: aguerozx.exe Startdate: 21/01/2022 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 7 other signatures 2->44 10 aguerozx.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\aguerozx.exe.log, ASCII 10->30 dropped 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 aguerozx.exe 10->14         started        17 aguerozx.exe 10->17         started        signatures5 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 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.xw36c.xyz 75.126.104.245, 49822, 80 SOFTLAYERUS United States 19->32 34 www.axiagps.com 104.21.53.38, 49796, 80 CLOUDFLARENETUS United States 19->34 36 www.lavillamexicanfoodanaheim.com 18.206.34.51, 49821, 80 AMAZON-AESUS United States 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 48 Performs DNS queries to domains with low reputation 19->48 23 colorcpl.exe 19->23         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 23->50 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-01-21 13:13:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
54
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1c26112880679a9c6c7e310dedd154aa6e8afadf0117a8c1ff4bc53b2fd2ceda
Formbook
2ed8aeaf73ee1a3caf7eb0be7814868c4100efbe1b021e2d964db3b638dc7f3c
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
8392408d685d10ddf024a7e4f47976e03a00fd787bd4ee0932766c4b9b278bc0
Formbook
86d9f290badc30732592c1af4705f3dedb1516cf25a4ec01a44b64fad834c718
Formbook
9e54c12e7b23d9988514b9aae1e3593b0a08814357860ff270f42014914b0a1e
Formbook
a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62
Formbook
c3e318eafb968f401d5165bb17e765613339ce25e4e48e99ea734580fae06d84
Formbook
dfa0138818e4f998337af94d5fea30fc920237ffba320fe5acd7af469db0c4a8
Formbook
ff49729f166632886284a0ef9e5e084151096acc1aa7e43c353e922e2fbb1086
Formbook
+ 12'820 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a94o rat spyware stealer trojan
Link:
https://tria.ge/reports/220121-qf3rsahdb6/
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
Formbook Payload
Formbook
Unpacked files
SH256 hash:
729bff72d7df86950c9a03b9d5814267b5f738df9aafd27b8d25603f2a910f33
MD5 hash:
ee24f75a5a8b88bf33a08abed0b62442
SHA1 hash:
98e44fcb0767dd065d3d6e9185330243dbc1dd69
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/c05ac7ae-5380-4112-bd6a-efea3108e9f1/
Parent samples :
166eaef2a1db9235f1cfa04186b1586ddb1f81466d4a47d4a835d6fbecdaafca
ff49729f166632886284a0ef9e5e084151096acc1aa7e43c353e922e2fbb1086
ccc5b256bd8bd09fb241407caee97afda894f2a884b533f3634324e7b87da47e
8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f
34f46dda75810eb7a5f92544fdbecf589cc3633a7ef163b54f338477598af7f1
SH256 hash:
f165d8f5c2539897a9dc587a9540c5e341079a60eebb9cb990492ee5186417cb
MD5 hash:
394901fd2f15f54b5d56cb333963d81c
SHA1 hash:
78983258598d5c51fed76c71a26a29cd6a6b59c1
Link:
https://www.unpac.me/results/c05ac7ae-5380-4112-bd6a-efea3108e9f1/
SH256 hash:
00bde2644917d460c04dce75506a1131b99b479fd98dc173e5ce0ec0327da601
MD5 hash:
d6766186830cd46f72fba571f0ef0bb9
SHA1 hash:
4d1b586fecce17a3bb57a95e6024c7960a0afde8
Link:
https://www.unpac.me/results/c05ac7ae-5380-4112-bd6a-efea3108e9f1/
SH256 hash:
8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f
MD5 hash:
e5951c540578e55f51dd0495ebcb6e61
SHA1 hash:
301909d4cf5f4a4f847ccc9378dd91a5e7f69659
Link:
https://www.unpac.me/results/c05ac7ae-5380-4112-bd6a-efea3108e9f1/
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/8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f

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.

Web download

Formbook

Executable exe 8e4da8766eb5ea763138244606bbdbafd4297a332988868411194d067724e24f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/221468/
  
URLhaus
https://urlhaus.abuse.ch/url/1901647/
  
Delivery method
Distributed via web download

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