MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de4a1ed43a149b646a258a5b119270c2c38da15f4b90ed9821d9e1e3527e8ed8. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de4a1ed43a149b646a258a5b119270c2c38da15f4b90ed9821d9e1e3527e8ed8
SHA3-384 hash: 414540bf81f5a95ee277b6b1b067ae6f5d9140f6e3061eb7c0cd07a1aa20a83f08d5d25745fc7852628badc7b6256717
SHA1 hash: a3d706f7a9874f46871433332ba66994d7b6c262
MD5 hash: ffeb800717463d2746d70a3585b5f983
humanhash: mobile-pip-california-magnesium
File name:Particulars.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'305'600 bytes
First seen:2020-08-05 11:35:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:LyeJYgGw08KouHgZfro2vGoFtj71kzgTctpwKpwiaeyHv:GeJYgGCKouqFu4egTctpRpKeyP
Threatray 5'136 similar samples on MalwareBazaar
TLSH 2455CFA17984DF5CCD2E0F3174332C10E7E3BE562D29F64EAC8679E817B72C6491624A
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail.esipooaintl.cf
Sending IP: 161.129.67.157
From: Huang Biyu <biyu.huang@sg.wilmar-intl.com>
Subject: FW: MV PRINCESS SUZAN - AGENCY NOMINATION /DISCHARGING
Attachment: Particulars.zip (contains "Particulars.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39440/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410968
Signature
Benign windows process drops PE files
Creates autostart registry keys with suspicious names
Detected FormBook malware
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses netstat to query active network connections and open ports
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 257646 Sample: Particulars.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 50 www.mylocalwizards.com 2->50 52 www.cleghornvalleyfarms.com 2->52 60 Malicious sample detected (through community Yara rule) 2->60 62 Yara detected AntiVM_3 2->62 64 Yara detected FormBook 2->64 66 5 other signatures 2->66 11 Particulars.exe 3 2->11         started        signatures3 process4 file5 48 C:\Users\user\AppData\...\Particulars.exe.log, ASCII 11->48 dropped 90 Tries to detect virtualization through RDTSC time measurements 11->90 92 Injects a PE file into a foreign processes 11->92 15 Particulars.exe 11->15         started        signatures6 process7 signatures8 94 Modifies the context of a thread in another process (thread injection) 15->94 96 Maps a DLL or memory area into another process 15->96 98 Sample uses process hollowing technique 15->98 100 Queues an APC in another process (thread injection) 15->100 18 explorer.exe 4 6 15->18 injected process9 dnsIp10 54 www.yofdyk.com 198.187.30.54, 49738, 80 NAMECHEAP-NETUS United States 18->54 56 www.wicksalt.cloud 18->56 58 2 other IPs or domains 18->58 42 C:\Users\user\AppData\...\update7nhp.exe, PE32 18->42 dropped 74 System process connects to network (likely due to code injection or exploit) 18->74 76 Benign windows process drops PE files 18->76 23 chkdsk.exe 1 17 18->23         started        27 update7nhp.exe 3 18->27         started        29 update7nhp.exe 2 18->29         started        31 4 other processes 18->31 file11 signatures12 process13 file14 44 C:\Users\user\AppData\...\841logrv.ini, data 23->44 dropped 46 C:\Users\user\AppData\...\841logri.ini, data 23->46 dropped 78 Detected FormBook malware 23->78 80 Tries to steal Mail credentials (via file access) 23->80 82 Creates autostart registry keys with suspicious names 23->82 88 3 other signatures 23->88 33 cmd.exe 1 23->33         started        84 Injects a PE file into a foreign processes 27->84 35 update7nhp.exe 27->35         started        38 update7nhp.exe 29->38         started        86 Tries to detect virtualization through RDTSC time measurements 31->86 signatures15 process16 signatures17 40 conhost.exe 33->40         started        68 Modifies the context of a thread in another process (thread injection) 38->68 70 Maps a DLL or memory area into another process 38->70 72 Sample uses process hollowing technique 38->72 process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/de4a1ed43a149b646a258a5b119270c2c38da15f4b90ed9821d9e1e3527e8ed8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 11:37:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3zfb5vb2csnwi2rfrjnrdetqylby3ik7joio3gbb3hq6gut6r3ma._file
Verdict:
malicious
Similar samples:
0d271903774ae9467d80cad6fcaec4d2ea4653b8eb4c28e0a1c7dbe0849ccd01
Formbook
370f3e9f42d074cd9575a0fa8df285e970dda741ae4200b54fb53f0a3145369e
Formbook
7d667845924245b2c6acee25a643afab5ad0a822614574c93cbf19ff0bb4f8c4
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8ec5d666ff1af04113f22c80294db956bedff4123e59ee925c5583c47b7794ec
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9daa8e87928b88143b9482b989764524754c86d142027ccaad1fc452f52c1765
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b3b093d992d26b0d21a61a778598abd5dd87649a89f724c2798f60f9dc19de1a
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c7949573443efdf9faf7bdd96422dd515bc3576d8fce3091776333047524d1a2
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d826e50de7b11772bc48d32d0f75b72a7975e469cfe9583a51edbd9bbaa58387
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df745e4434b953ab404e59ef73608a9f3148fa7d629a28b7401c295efdf618b6
Formbook
eefab144fefdb2883084329ab3755717ed6882b348eea18aa611a0a446c39f69
Formbook
+ 5'126 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200805-aaknael96n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.40
Link:
https://yomi.yoroi.company/submissions/de4a1ed43a149b646a258a5b119270c2c38da15f4b90ed9821d9e1e3527e8ed8

File information

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

Malspam

Formbook

zip 99d56ba9a904827cedca699d6d641ff5d4289af6d4b2bce6a838548650c268c5

Formbook

Executable exe de4a1ed43a149b646a258a5b119270c2c38da15f4b90ed9821d9e1e3527e8ed8

(this sample)

  
Dropped by
MD5 82d31a4ebbf9435c19fe01f110eb3181
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39440/
  
Dropped by
SHA256 99d56ba9a904827cedca699d6d641ff5d4289af6d4b2bce6a838548650c268c5

Comments