MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
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SHA256 hash: f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
SHA3-384 hash: 79a2233ddf4ed3793edf6500a429a858aded699a40e07f6e26283b1038bb722c224ea755efc7517871a43c5c356d5e59
SHA1 hash: 27e948bb6d7528e8424c4407cc2723341be80b9c
MD5 hash: ca04c158a9dd8788d96884e6eb11a21b
humanhash: high-west-music-vermont
File name:ca04c158a9dd8788d96884e6eb11a21b.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:746'496 bytes
First seen:2021-10-11 14:03:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:UxT5FTcrQ3yNB9U+p+ll2ktCdM8xeDraRe1GfU24:KTnoPIXtSD4
Threatray 8'770 similar samples on MalwareBazaar
TLSH T158F4B359F342AC0ED457557354E058E3A1042CD7E8498339EBB3BAA358AE3814F5CBEE
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment.xlsx
Verdict:
Malicious activity
Analysis date:
2021-10-11 07:20:06 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/b2372be3-2d42-4627-abfe-84836cc7785c

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/196664/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.20279.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6164445bfd35fe780c3823f3/reports/af7577f2-1e87-48d3-b6e4-0b5a8c6e213f/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/131e1d11-7198-425f-b27b-647ce0123062
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867855
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Performs DNS queries to domains with low reputation
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 500282 Sample: 3a3A1oTm92.exe Startdate: 11/10/2021 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 10 other signatures 2->50 10 3a3A1oTm92.exe 6 2->10         started        process3 file4 34 C:\Users\user\AppData\Roaming\slvzkA.exe, PE32 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp9951.tmp, XML 10->36 dropped 38 C:\Users\user\AppData\...\3a3A1oTm92.exe.log, ASCII 10->38 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 62 Injects a PE file into a foreign processes 10->62 14 3a3A1oTm92.exe 10->14         started        17 schtasks.exe 1 10->17         started        19 3a3A1oTm92.exe 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        process8 dnsIp9 40 www.exquisitepdc.com 21->40 42 www.apple-iphone.xyz 21->42 52 System process connects to network (likely due to code injection or exploit) 21->52 54 Performs DNS queries to domains with low reputation 21->54 27 svchost.exe 21->27         started        signatures10 process11 signatures12 64 Self deletion via cmd delete 27->64 66 Modifies the context of a thread in another process (thread injection) 27->66 68 Maps a DLL or memory area into another process 27->68 70 Tries to detect virtualization through RDTSC time measurements 27->70 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-11 07:37:10 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
Formbook
55ed65b48cb66c266459b4bbe35faecbc6c7737a1d89d9df884152c292b4b762
Formbook
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
Formbook
b66060a214c372ff66b8917fee39b5cb6c82972cf7cdfcd64b9ae4b7b7e01bf7
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
eb39b7952714c4a7c7fbfc68a077ef0a2dd31c24da35078da08bcfc0b1e2ff32
Formbook
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
Formbook
+ 8'760 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hs3h evasion rat spyware stealer trojan
Link:
https://tria.ge/reports/211011-rc975ahde3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.alefisrael.com/hs3h/
Unpacked files
SH256 hash:
3fdc3e95250a85b401fd290a36949ab2b65a68e87f14840cee11298563277cac
MD5 hash:
25a22d0c20252efdee71059d52299e60
SHA1 hash:
e8fe27788212e6154332bc769e00b13f6653b322
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/08730356-d824-4eb4-b0b9-8349b8adce39/
Parent samples :
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
4e25735dc713c78458f181caa0f09a6ea2ca79a708a3b22f52d1c936806de251
63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/08730356-d824-4eb4-b0b9-8349b8adce39/
SH256 hash:
9189c5d9c34adce1787b97fc8d938320d0cf266c0ebd8bdd00b35985dd7bee76
MD5 hash:
f8f4ffc9649a8513afce5b008e18a952
SHA1 hash:
479ee38f13214b19eeb37c844a6eca278fb0481c
Link:
https://www.unpac.me/results/08730356-d824-4eb4-b0b9-8349b8adce39/
SH256 hash:
f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
MD5 hash:
ca04c158a9dd8788d96884e6eb11a21b
SHA1 hash:
27e948bb6d7528e8424c4407cc2723341be80b9c
Link:
https://www.unpac.me/results/08730356-d824-4eb4-b0b9-8349b8adce39/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f083c960cd20/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/f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab

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: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 f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1665761/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/196664/

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