MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0
SHA3-384 hash: 8f87d85e14bc6db7d1b514218644163ce9c12cd55f917a85463cea602d8bbac186f5bdf6945c50eb708418a385f2e6a5
SHA1 hash: 5d2672c79e9dffb2cdeee0d00e406c03c762985c
MD5 hash: 58b39c2620cdda3d3fa6a125f476fc9f
humanhash: happy-enemy-wisconsin-tennis
File name:WZ454554.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:807'424 bytes
First seen:2022-01-13 19:17:03 UTC
Last seen:2022-01-14 07:06:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 030d446cabf252026c031abcf4f0ab07 (1 x FormBook)
ssdeep 24576:0tXZPH7fBQJyk/0fHvmd8MKTD9/J+fyAB5:KV885T5m
Threatray 12'691 similar samples on MalwareBazaar
TLSH T1B305AF62F391C433D3B31D74FDA656B598297DC0392898862AD0FE6C4F3A3517A2D293
File icon (PE):PE icon
dhash icon e0e4a3a6a4b8b8a8 (37 x Formbook, 9 x AZORult, 9 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WZ454554.exe
Verdict:
Malicious activity
Analysis date:
2022-01-13 19:28:21 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/e14efc26-a771-428a-91d2-b5e0093ffae1

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/219130/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader44.32547.21270.30600.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Unauthorized injection to a recently created process
Searching for synchronization primitives
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/4125/overview
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe keylogger
Link:
https://www.filescan.io/uploads/61e07ab61883c5ba4ec8c6a8/reports/68ddd315-d286-4e6b-bbdc-76e36da11e6c/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/30808d05-6fc4-4c5c-87ca-2539a3dacbd8
Result
Threat name:
FormBook DBatLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/920376
Signature
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 552851 Sample: WZ454554.exe Startdate: 13/01/2022 Architecture: WINDOWS Score: 100 72 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->72 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 6 other signatures 2->78 10 WZ454554.exe 1 17 2->10         started        process3 dnsIp4 56 cdn.discordapp.com 162.159.130.233, 443, 49746, 49747 CLOUDFLARENETUS United States 10->56 46 C:\Users\user\Contacts\Hyrzbcwcas.exe, PE32 10->46 dropped 48 C:\Users\...\Hyrzbcwcas.exe:Zone.Identifier, ASCII 10->48 dropped 96 Tries to detect virtualization through RDTSC time measurements 10->96 98 Injects a PE file into a foreign processes 10->98 15 WZ454554.exe 10->15         started        file5 signatures6 process7 signatures8 100 Modifies the context of a thread in another process (thread injection) 15->100 102 Maps a DLL or memory area into another process 15->102 104 Sample uses process hollowing technique 15->104 106 Queues an APC in another process (thread injection) 15->106 18 explorer.exe 2 15->18 injected process9 dnsIp10 50 sentlogisticsja.com 34.102.136.180, 49817, 49819, 49820 GOOGLEUS United States 18->50 52 www.sentlogisticsja.com 18->52 54 www.senerants.tech 18->54 80 System process connects to network (likely due to code injection or exploit) 18->80 22 help.exe 18 18->22         started        26 Hyrzbcwcas.exe 13 18->26         started        29 Hyrzbcwcas.exe 14 18->29         started        31 2 other processes 18->31 signatures11 process12 dnsIp13 42 C:\Users\user\AppData\...\75Alogrv.ini, data 22->42 dropped 44 C:\Users\user\AppData\...\75Alogri.ini, data 22->44 dropped 82 Detected FormBook malware 22->82 84 Tries to steal Mail credentials (via file / registry access) 22->84 86 Tries to harvest and steal browser information (history, passwords, etc) 22->86 94 2 other signatures 22->94 33 cmd.exe 2 22->33         started        58 cdn.discordapp.com 26->58 88 Multi AV Scanner detection for dropped file 26->88 90 Tries to detect virtualization through RDTSC time measurements 26->90 92 Injects a PE file into a foreign processes 26->92 36 Hyrzbcwcas.exe 26->36         started        60 162.159.135.233, 443, 49751 CLOUDFLARENETUS United States 29->60 62 cdn.discordapp.com 29->62 38 Hyrzbcwcas.exe 29->38         started        file14 signatures15 process16 signatures17 64 Tries to harvest and steal browser information (history, passwords, etc) 33->64 40 conhost.exe 33->40         started        66 Modifies the context of a thread in another process (thread injection) 36->66 68 Maps a DLL or memory area into another process 36->68 70 Sample uses process hollowing technique 36->70 process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-01-13 13:37:05 UTC
File Type:
PE (Exe)
Extracted files:
55
AV detection:
32 of 43 (74.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7xzz2bb4yvowu4vr7ya4sbt3w5mr2xbxs6metekikipgcwfp52qa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2152a980e864940db36cde90c649f66e7c2da15790e97703a28cb378fb7b5ca6
FormBook
41477bedbe65980efdfe44fbf871c15273b68d114dcabb814ee9cf65f13851be
FormBook
5c05ff860f7d421506e3e20e83b955a148ec9f4429313881d1c4f1bd22f58e3f
FormBook
5cbb6ffeafe0a54df3243d3c730168b51e8cf6750cf9355b164c2dd554af609e
FormBook
8fbd2e80471ac408f76f9a2221d78e29ad5632961161f2cfc4c017d9b4ecbfde
FormBook
b05301021a46ef289074de0c30a8219e9240bc5a034b718406c9346bd50fe557
FormBook
c26350de480859838a7d758ce891d049c78844695c6f7e33f9ea2fecc4b4a4a9
FormBook
c3e318eafb968f401d5165bb17e765613339ce25e4e48e99ea734580fae06d84
FormBook
f13197aff6f530d9883aa1787cd57f4580c4c92bcaa5100f2641924c3e6867a5
FormBook
+ 12'681 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:modiloader campaign:m9g2 persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220113-xzemmacbg4/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Formbook Payload
ModiLoader First Stage
Formbook
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
5852f167948b3cf3fcd175ed0acc3cd43456ab0aecae4ac68121bde1906bcf39
MD5 hash:
bb66163c0a181098d801f3d6b775f73f
SHA1 hash:
fe4adcf4bf6146cac5b4eb192c99fc0cebba323b
Detections:
win_dbatloader_w0
Create hunting rule
Link:
https://www.unpac.me/results/011c3464-a846-48f2-8808-6cf39e94afab/
Parent samples :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 hash:
fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0
MD5 hash:
58b39c2620cdda3d3fa6a125f476fc9f
SHA1 hash:
5d2672c79e9dffb2cdeee0d00e406c03c762985c
Link:
https://www.unpac.me/results/011c3464-a846-48f2-8808-6cf39e94afab/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fdf39d043cc5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0

File information

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

Malspam

FormBook

Executable exe fdf39d043cc55d6a72b1fe01c9067bb7591d5c379798499148521e6158afeea0

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/219130/

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