MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
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SHA256 hash: 043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
SHA3-384 hash: fcffde474609e83a1d14c3f70ae4429a624972da012442f2fd1e12ab3bf8bfe5f79f9211179bee3f8bb5e4939425973c
SHA1 hash: 426ff70d8bc93dfda31e849156e1c1e6c758d371
MD5 hash: 026028926f83ef1d31d0f170210c14f8
humanhash: colorado-illinois-orange-green
File name:026028926f83ef1d31d0f170210c14f8.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:854'528 bytes
First seen:2021-09-27 08:29:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'449 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:kMIFPQSclITZyApce48FIGxALQF+N6+3:kMIFPdM6koX4soQE
Threatray 9'642 similar samples on MalwareBazaar
TLSH T19105BF19A2AC9B4EC5BF83FAB00350181777ED8B3E0DD6059EC231E81E75BB14A565CB
File icon (PE):PE icon
dhash icon 00868ecccce8cc10 (13 x AgentTesla, 9 x Formbook, 2 x NanoCore)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
026028926f83ef1d31d0f170210c14f8.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-27 08:46:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ad440bd2-bfd2-44a9-8828-28c623646042

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/191965/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/91ffdefb-8868-4315-a9a5-271f6368d5e6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858828
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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 dnsIp2 2 Behavior Graph ID: 491258 Sample: hZ48wQKal7.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 33 www.zekesky.com 2->33 35 ext-cust.squarespace.com 2->35 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 8 other signatures 2->45 11 hZ48wQKal7.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\hZ48wQKal7.exe.log, ASCII 11->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 hZ48wQKal7.exe 11->15         started        18 hZ48wQKal7.exe 11->18         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 20 explorer.exe 15->20 injected process9 dnsIp10 37 www.shop4btc.com 20->37 47 System process connects to network (likely due to code injection or exploit) 20->47 24 cmstp.exe 20->24         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 24->49 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-09-27 08:30:22 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
Formbook
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
6bb763ffd1ca484344f2a02df3f9e6bddc18a0f1fcd5d58002ad16b82b36db90
Formbook
6bcdb1b6795c22308aee5d390cfae409d21a3238a304466dd54c1dee43570afd
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
a99b696e8ac16303843b26c95c982d5be9b9fd657d843937cc586c9a8dc29b83
Formbook
af0af3ebf3ac231ad77dbe4cbfa0fb2d48312d4ca0b5431081046ab09aa3b552
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
+ 9'632 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bckt rat spyware stealer trojan
Link:
https://tria.ge/reports/210927-kd8blagbaj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.picnictablecompany.com/bckt/
Unpacked files
SH256 hash:
7d7501fb22cb18f10bfac1575359ff3a7e9ba934985a8184d02e5a26a3c4801d
MD5 hash:
4c1f6f8f4bf9678c49d6ea74baca3576
SHA1 hash:
3209fc3defa6d9eeb8ed06fe8cbcf6a69c84c782
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/87e4d422-2e73-4f54-b367-bbc71cd72f3f/
Parent samples :
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
92c90d735148f7fd056e2d53bf44239f3fdab6b029e78d3ed6077d9c7f40aef2
c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13
5be742e9644f86ef1d407e5b3e85dff6211561e6dbf9c9fc85b0c5289b899979
SH256 hash:
80376c01f1fbd4cd73de5e2ac60134ca65790095d73fa2aea2b1095ebb9a4567
MD5 hash:
f42eb8f24f8738120ac10eadd59dc26a
SHA1 hash:
4717c8cace16222afd80c185282a52839efea252
Link:
https://www.unpac.me/results/87e4d422-2e73-4f54-b367-bbc71cd72f3f/
SH256 hash:
a92412787995e118bc53e94fbdb23e2ff244e54bff8f0ed5b0de86e67ab1e1f6
MD5 hash:
36ed86b1217fb90d9431c901e1c79fbe
SHA1 hash:
1ec470dfcfbad79f3186ce2baf7488408ea537d3
Link:
https://www.unpac.me/results/87e4d422-2e73-4f54-b367-bbc71cd72f3f/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/87e4d422-2e73-4f54-b367-bbc71cd72f3f/
SH256 hash:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
MD5 hash:
026028926f83ef1d31d0f170210c14f8
SHA1 hash:
426ff70d8bc93dfda31e849156e1c1e6c758d371
Link:
https://www.unpac.me/results/87e4d422-2e73-4f54-b367-bbc71cd72f3f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06

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
Create hunting rule
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.

Web download

Formbook

Executable exe 043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1583603/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1599707/
Cape
Cape
https://www.capesandbox.com/analysis/191965/

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