MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5
SHA3-384 hash: 9ec2c42b45de6d5516dc83485d8c4f494b21a6be1bf547c302264e5d9ec782414ec5d89edbf47d2be14210a1eb9414d5
SHA1 hash: d376a1bb29d6339f83c85cf4a4de76d7b1d3a48c
MD5 hash: 2373461f92033cdb39e3893a5ad1f123
humanhash: rugby-cup-five-solar
File name:2373461f92033cdb39e3893a5ad1f123
Download: download sample
Signature Formbook
Create hunting rule
File size:468'480 bytes
First seen:2021-11-12 13:17:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:oI+0VfhptD00NJkRJzdgiswnrzFpKnezA6Z21xBwRVc:L+GnC07k7nlnA6Z2
TLSH T11AA4F1293F94DE55D2364AFAC8FE805403FCF6656972C75D2FCC328F69627021860A9E
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://downloads.dd.com.mt/xtain.exe
Verdict:
Suspicious activity
Analysis date:
2021-11-12 16:37:57 UTC
Tags:
loader
Link:
https://app.any.run/tasks/dfbd8998-daf9-4dc6-9bf1-d94bbbac9d97

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/205300/
Detection(s):
Win.Packed.Msilzilla-9907552-0
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618e698cdec3347825a2c8d5/reports/10789a1a-c559-4bff-86d7-c5faa9f91d63/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/b3e73c3f-0b1a-47ee-9389-4091157ac02d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/888136
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 520609 Sample: nstnyfr1jk Startdate: 12/11/2021 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 8 other signatures 2->46 10 nstnyfr1jk.exe 3 2->10         started        process3 file4 36 C:\Users\user\AppData\...\nstnyfr1jk.exe.log, ASCII 10->36 dropped 56 Writes to foreign memory regions 10->56 58 Allocates memory in foreign processes 10->58 60 Injects a PE file into a foreign processes 10->60 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        19 RegSvcs.exe 10->19         started        21 SgrmBroker.exe 10->21         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 23 explorer.exe 14->23 injected 70 Tries to detect virtualization through RDTSC time measurements 17->70 process8 signatures9 48 System process connects to network (likely due to code injection or exploit) 23->48 26 cscript.exe 23->26         started        process10 signatures11 50 Modifies the context of a thread in another process (thread injection) 26->50 52 Maps a DLL or memory area into another process 26->52 54 Tries to detect virtualization through RDTSC time measurements 26->54 29 explorer.exe 2 158 26->29         started        32 cmd.exe 1 26->32         started        process12 dnsIp13 38 www.snarlsymbol.store 29->38 34 conhost.exe 32->34         started        process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-11 03:42:15 UTC
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nqm8 rat spyware stealer trojan
Link:
https://tria.ge/reports/211112-qjyl8sdec5/
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mmsite.site/nqm8/
Unpacked files
SH256 hash:
a9a7faeb7d569598c75f663797622a5486f313dd52b1fa0f530aaad354c49574
MD5 hash:
9f0072037109bbbab69a4994a5ddc493
SHA1 hash:
65ba062434fbd0511f885251fef155bc2dd4e1ee
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/72084d59-0784-4ab5-bb71-755d0efd280d/
Parent samples :
02a852aaa839120b0e557629b63a754cb302ebe2f11275d3e4fb68f4f1e70532
79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5
7930bf3f1be9acdf429e2433aa7d0c36985d9a97e580571fee1ffe8cbc0d8f5a
71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28
e4b24664fbf0d04e761c36b6dcfb06c1f301b81a5f4c7c4696b2db972f20708a
SH256 hash:
5946bd02a45d6deccaf69ff9df86f30748c2173061df1889cd52ba0195651682
MD5 hash:
5a89de34f8cd1c44bb30d6956789eb7f
SHA1 hash:
b4bcf12a90c75a43417e0fac1a17b493460f5c6d
Link:
https://www.unpac.me/results/72084d59-0784-4ab5-bb71-755d0efd280d/
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/72084d59-0784-4ab5-bb71-755d0efd280d/
SH256 hash:
79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5
MD5 hash:
2373461f92033cdb39e3893a5ad1f123
SHA1 hash:
d376a1bb29d6339f83c85cf4a4de76d7b1d3a48c
Link:
https://www.unpac.me/results/72084d59-0784-4ab5-bb71-755d0efd280d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5

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 79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1779831/
Cape
Cape
https://www.capesandbox.com/analysis/205300/

Comments


Avatar
zbet commented on 2021-11-12 13:17:31 UTC

url : hxxp://downloads.dd.com.mt/xtain.exe