MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2. 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 4 File information Comments
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SHA256 hash: 4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2
SHA3-384 hash: 8b5f208804f04cc19c1f9cbe89150d9f5567fe0df3a93655003703e3793c538bcf65525489035d9cc3ec5a2a46fde171
SHA1 hash: 7f74591cefe65e9e37f8583afe4db3ced2bf7fe8
MD5 hash: 200f96e411db80d114513cc854be15a7
humanhash: apart-alaska-sink-lima
File name:QUOTATION.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:465'920 bytes
First seen:2021-09-16 09:24:29 UTC
Last seen:2021-09-16 10:08:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:rkHWHCM2K4CYHblsrFJ8ie74YVB+bAXxNHOyj+C:03Cvcie74qsEXxNHXX
Threatray 9'350 similar samples on MalwareBazaar
TLSH T158A4CF243AFE8005F1B3AFB59ED97595DA7EFBA33603D81E2495038A0613B80DD8117E
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION.exe
Verdict:
Malicious activity
Analysis date:
2021-09-16 09:29:25 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/632cd6cc-5228-4b00-ad73-86f304e043b6

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/188392/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.ALK.genEldorado.1031.5096.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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm obfuscated packed
Link:
https://www.filescan.io/uploads/61752174a9d585e6d5371053/reports/ec3545ed-9b1c-4c33-98dc-09f01adf15c4/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee064fda-9f2e-49f2-8e17-824f16c197a2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/851942
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 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: 484373 Sample: QUOTATION.exe Startdate: 16/09/2021 Architecture: WINDOWS Score: 100 34 www.cloudrail.net 2->34 36 www.ziwomou.site 2->36 38 parking.namesilo.com 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 7 other signatures 2->48 11 QUOTATION.exe 3 2->11         started        signatures3 process4 signatures5 58 Tries to detect virtualization through RDTSC time measurements 11->58 60 Injects a PE file into a foreign processes 11->60 14 QUOTATION.exe 11->14         started        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 17 explorer.exe 14->17 injected process8 dnsIp9 28 www.hempandcan.com 208.91.197.91, 49774, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 17->28 30 www.opexma.com 52.58.78.16, 49773, 80 AMAZON-02US United States 17->30 32 5 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-09-16 08:29:35 UTC
AV detection:
11 of 44 (25.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6fueqetjhn4dra7wxjozcjf74zctcrhf5lztehkuzpxadjcq6za._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
13c2ff62d1e29d6e88c828851f842b17acb6293da92bdf5223e87a67bf00ed31
Formbook
3f383c683795d277510e0fb4c806ae17bfb33dd6ff875b66c159068e58c28818
Formbook
4b9ec9143ae2471c8cf540f5e3815c4ca4bb5e073d5c45e6bd934cc0350e8546
Formbook
7deecd8502e99ced6aec8588840f7e972a3b030c19e0e88ef94ec3a9d2ababc9
Formbook
9ca766e3e0643a762b8e40b63c7db535d677d7c6b4be3109f1c68afe3334d8f9
Formbook
b092672d7f36d3deaab664c0a562b055f9cee3f247328e639aca58f025f979ca
Formbook
bb7d986712c63235f866f11ebc85ac60c360676e0576a075f16c16f679c31c7b
Formbook
cfdb27a9ff39bd1aa5a0a43fe6e272c269a311f5748d8a13b2e705f7d66f16bd
Formbook
+ 9'340 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:tgnd loader rat suricata
Link:
https://tria.ge/reports/210916-ldl9ssfeap/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.fhuosa.com/tgnd/
Unpacked files
SH256 hash:
7bed200f01ae5b4e14b525d7c23a48d6937cc50bba0461b9ca8f5ae37df8dd0e
MD5 hash:
ccf124baa2bcb1daad77d2cc520f061a
SHA1 hash:
833dc6aa04f3bb55ea8ad681d0ec49752f239ac3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c644ac43-4933-4edb-aa14-dc1a5e08d10a/
Parent samples :
bb7d986712c63235f866f11ebc85ac60c360676e0576a075f16c16f679c31c7b
9ca766e3e0643a762b8e40b63c7db535d677d7c6b4be3109f1c68afe3334d8f9
4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
Link:
https://www.unpac.me/results/c644ac43-4933-4edb-aa14-dc1a5e08d10a/
SH256 hash:
09815fb702062e766016aa9feb6baf6d36fee4667a1eef431616583d5c093037
MD5 hash:
52c7e04bbfffaea24164e81877e82f55
SHA1 hash:
789f7926c6619731eb1224631e2a5934c06ca49b
Link:
https://www.unpac.me/results/c644ac43-4933-4edb-aa14-dc1a5e08d10a/
SH256 hash:
4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2
MD5 hash:
200f96e411db80d114513cc854be15a7
SHA1 hash:
7f74591cefe65e9e37f8583afe4db3ced2bf7fe8
Link:
https://www.unpac.me/results/c644ac43-4933-4edb-aa14-dc1a5e08d10a/
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/4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2

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
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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.

Malspam

Formbook

Executable exe 4f8b42409349dbc1c41fb5d2ec8925ff32298a272f579990eaa65f700d2287b2

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/188392/

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