MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c
SHA3-384 hash: f62bb827cda7f234e7a7f8aa64760ffc1a76bc74e24fa55f590a4ad77cab1133a3ca6dff6e3916d954eb73b2a0e5e1c2
SHA1 hash: d9031f741da7ddac2696ce0ebda743a626ad10a2
MD5 hash: 177a65a374f4413afb746bd3fd823460
humanhash: kansas-steak-hydrogen-five
File name:IRQ2107799_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:434'880 bytes
First seen:2022-02-22 07:46:35 UTC
Last seen:2022-02-22 07:47:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:nxD/wCVPOvwtvNQEEj3n+eE64sFLEt3FZgS2Y80+gYS529aefE:7WIAP+eENsFgTZgq8L6UC
Threatray 13'511 similar samples on MalwareBazaar
TLSH T1D494C02515E2D40ECFA675384F50E9B8A7F94E4E393922C223F7AF9F796DB932540081
File icon (PE):PE icon
dhash icon 30f0c0a4b0cc6130 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/243149/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/621494feac8ad0468b652445/reports/60b9d628-ef2a-4be4-8980-bca9173506dd/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f3a92f91-e0c1-485f-a19e-d220a9061acf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/943865
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 576339 Sample: IRQ2107799_pdf.exe Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 38 www.specialkidshappiness.com 2->38 40 parkingpage.namecheap.com 2->40 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 8 other signatures 2->58 12 IRQ2107799_pdf.exe 18 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\Temp\hwyqp.exe, PE32 12->36 dropped 15 hwyqp.exe 1 12->15         started        process6 signatures7 68 Multi AV Scanner detection for dropped file 15->68 70 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->70 72 Tries to detect virtualization through RDTSC time measurements 15->72 74 Injects a PE file into a foreign processes 15->74 18 hwyqp.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 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 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 23 explorer.exe 18->23 injected process10 dnsIp11 42 www.cyberuntangler.com 35.213.226.233, 49756, 80 GOOGLE-2US United States 23->42 60 System process connects to network (likely due to code injection or exploit) 23->60 27 svchost.exe 23->27         started        30 autochk.exe 23->30         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 27->62 64 Maps a DLL or memory area into another process 27->64 66 Tries to detect virtualization through RDTSC time measurements 27->66 32 cmd.exe 1 27->32         started        process15 process16 34 conhost.exe 32->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 07:47:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qow6s66a62jxmf3h42dsatqrxj55u6kw3mye6stdzjlmvndhxuoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ed8aeaf73ee1a3caf7eb0be7814868c4100efbe1b021e2d964db3b638dc7f3c
Formbook
836696cddebff5d522acb2c105a404ceeb635df69b3c9544b5bebcef13bc3e86
Formbook
83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c
Formbook
945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5
Formbook
ace8d85c2f02bd3d531cd8d609d23c6d35588ecce52f40a8d129b39a6b1d7723
Formbook
bc09ecf5cb6364f4d053ec0420282fa6e7a1649a8a5ca2af2ca933aa27f8b90c
Formbook
c652919676cc6f3ea808c6e1023de343d27ed8f72f4f1b94523c4ecfb09bf223
Formbook
ec575e5cdf3da323c27e65f3042586173ca50ba0682b733a61f0b47f80c3004e
Formbook
ff3e94ded64b43f620ba549db99baa31abdd763209b60f7c9fc884b82cfac6d3
Formbook
+ 13'501 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s1m4 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220222-jmjtxsfchl/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
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
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
44118ef8c9bdc8cdbba322ce7ee0fa1a7da763b20f646114961b842b356d096e
MD5 hash:
fa1b2f774045620e6c63fb9fb1ec3a40
SHA1 hash:
ae5978ddbf081389d09522bd97508c6121875648
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fde2a9a9-548f-4e9f-ac70-5bf58dfbfb1b/
Parent samples :
83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c
70363d434c9189f6c316737167fb509e5ac3f31c0c292cb3ecebd96022b22a36
156b5c448e30912d7d21ca87fbb01a5c9006a3093c236e05809a4b4ecacd7400
676a4494049a119c4ec6850ed567244715cbc6ea5d2df2719c8e3875ddfd79d5
SH256 hash:
b8d4896a454ea335a5816469c67436c219c2e7047be97883c81645e143fecbb9
MD5 hash:
8aaa644f1f9dd4697d066c0309f2256c
SHA1 hash:
8d528e84f6e62ce9c3cc6db0ebc400056a908b27
Link:
https://www.unpac.me/results/fde2a9a9-548f-4e9f-ac70-5bf58dfbfb1b/
SH256 hash:
83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c
MD5 hash:
177a65a374f4413afb746bd3fd823460
SHA1 hash:
d9031f741da7ddac2696ce0ebda743a626ad10a2
Link:
https://www.unpac.me/results/fde2a9a9-548f-4e9f-ac70-5bf58dfbfb1b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 83ade97bc0f693761767e687204e11ba7bda7956db304f4a63ca56cab467bd1c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/243149/

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