MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88. 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: aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
SHA3-384 hash: ed7cf47b38d3b492914ff30aef3b5944dc249c9ac111eb3885ea047b2ebf7e1494edc2699ca5781342f257fc20e5979b
SHA1 hash: 3b77986e8695f04266eb03393272a7fc66d5415d
MD5 hash: 0f03eab5505bb4a4df99ccead0fc28f4
humanhash: oven-oranges-pip-video
File name:EoH35.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'083'904 bytes
First seen:2021-07-29 11:45:07 UTC
Last seen:2021-07-29 13:01:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Dqz0NjVC/d3mK64J2R2CAkll97v7PPR67G:WcRK64JdC1lllzHo7
Threatray 6'895 similar samples on MalwareBazaar
TLSH T1D4358E3166C4CE19E12E833A8ECF60206FFCF9113572A76A7DE113B5496AF51E8781C9
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EoH35.PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-07-29 07:47:12 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/c9c88263-7be2-4ea7-85d9-e3ebc72bf3d9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/175014/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.3146.834.UNOFFICIAL
Create hunting rule

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/da7a82b0-e2cd-45f9-912c-6c9c7ddbda2d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/823785
Signature
.NET source code contains very large strings
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
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 456196 Sample: EoH35.PDF.exe Startdate: 29/07/2021 Architecture: WINDOWS Score: 100 31 www.waaaghstore.com 2->31 33 www35.wixdns.net 2->33 35 3 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 9 other signatures 2->49 11 EoH35.PDF.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...oH35.PDF.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 EoH35.PDF.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.ziyouxinqing.com 160.124.142.226, 49749, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 18->37 39 www.sportsmanstoystore.com 194.58.112.174, 49750, 80 AS-REGRU Russian Federation 18->39 41 6 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 colorcpl.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Gathering data
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-29 03:33:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vksa5yvvbhocworpcl3c24cwlsc6xgvbhj7p2q53q3h3ucr6dkea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22ae731061f7359c7467be0f7a710013516ed356a79b2e23adec7c57a12624a2
Formbook
3a4677dc6f14f38983af15458b11d5f92e71dea8d5cd0e5b263c50d211a72621
Formbook
450178f7975019437a0e145934d9f99c1c4cc7be3b4ab8ab30454460447199a4
Formbook
4d8eaf37de32a6ff36c965b6e616e2085e2d1bd46e75344ca1fea59178c19f15
Formbook
59376f91fb0637be9672bb23efc91acf2ef949826c74dfb927146f9799eecd08
Formbook
6bb8fa14bf9c650a67541ffedff2e3f1c055454b90489653c95aa39284d7eb92
Formbook
9445483350a3ed0479eed69073869e73b7837327bade374605b841a560a6ee70
Formbook
c494dceddfa1c8c6944a93f902c641ab5f99352ba48b81849e576f7da353314c
Formbook
ebb6267e5c3bf10ec8ccba29d6fd2c7b747cef8b758db1544caf9edc7f117d7b
Formbook
+ 6'885 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat suricata
Link:
https://tria.ge/reports/210729-jrhff896me/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
CustAttr .NET packer
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.ossotasarim.com/ushb/
Unpacked files
SH256 hash:
07acbfc2c0c4df4588c2f37e7d7e33b4c8e28484901d7e7c8fbbef7dd71cb0bd
MD5 hash:
c9a8323e43ec51f8319c94a628b026d3
SHA1 hash:
11154e36d757d87ff53467682a9ed0b579539165
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/db23ca64-9aa2-449d-b022-06eaf047a20c/
Parent samples :
aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
8d56e8c41d8094151017ec3cecc40b5aa78edb0d955d39f3c68c3d211fbcb65a
32bebc90eccf1fc02fa1f409233269a76243731db1192a827d31d3d1dab2f6da
d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981
SH256 hash:
8c3e1c1dfc1e737e362a3df45fa00eb3ca2c37836f8c38952c12f303e75b49a1
MD5 hash:
4e7a1c8ca82ef116789eb66e2fb04c9c
SHA1 hash:
dbe4160a7fc9f93baa55fafe7e5e6b82d88b37d6
Link:
https://www.unpac.me/results/db23ca64-9aa2-449d-b022-06eaf047a20c/
SH256 hash:
97d2fa1d01b2f9a2199896e05e0cf60c14a9f41ef2d72e15fbb862b7afa08438
MD5 hash:
68463851c0e6fe7a254c99fae763d454
SHA1 hash:
4587a5371d88c296a0184fe47ee0c5245b187127
Link:
https://www.unpac.me/results/db23ca64-9aa2-449d-b022-06eaf047a20c/
SH256 hash:
e0361f54afc7e32fc2c1ad50079e9f497f1112a3420388c14f592b1e9db61c03
MD5 hash:
bb30a78056cbe74624a983a4b7baceb8
SHA1 hash:
104b0c01b03e99948cd26c4eecbfb309ce2ca64b
Link:
https://www.unpac.me/results/db23ca64-9aa2-449d-b022-06eaf047a20c/
SH256 hash:
aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
MD5 hash:
0f03eab5505bb4a4df99ccead0fc28f4
SHA1 hash:
3b77986e8695f04266eb03393272a7fc66d5415d
Link:
https://www.unpac.me/results/db23ca64-9aa2-449d-b022-06eaf047a20c/
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/aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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

rar 43d654ed6722bfa25d4f089256e4911bc46b1fe8d2b5bf8c809ad47a6c91d22a

Formbook

Executable exe aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 43d654ed6722bfa25d4f089256e4911bc46b1fe8d2b5bf8c809ad47a6c91d22a
Cape
Cape
https://www.capesandbox.com/analysis/175014/

Comments