MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746
SHA3-384 hash: 9caa027222b5623397f043f4157f37d23a4a8a9f0267909363d1874869c7e814eb6d467a6b91ece0401832940f726440
SHA1 hash: 58bb9e282a8d6c95941d310a23010718901c58dd
MD5 hash: 7c347b3aba43cefc31e91fede356961b
humanhash: floor-hydrogen-hydrogen-black
File name:Inquiry-URGENT.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:632'320 bytes
First seen:2021-10-01 19:22:20 UTC
Last seen:2021-10-04 06:14:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:izRqbQ+X8+UiDLbRHahnR5nr3MRV6MTmdl/GdoCxqILzxRr3HZjDGz05Vh:DbQ+X8+UiDLbRHahn7cRwMadmoCdzHFJ
Threatray 10'108 similar samples on MalwareBazaar
TLSH T101D46B68E22FE769FD1923F0263CFCD019F82A69147DFA27BD9650E23489E3151B0653
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry-URGENT.exe
Verdict:
Malicious activity
Analysis date:
2021-10-01 19:27:32 UTC
Tags:
trojan formbook stealer opendir
Link:
https://app.any.run/tasks/2d1b1646-5ae0-4666-9a82-2ac6ff6cff05

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/194048/
Detection(s):
SecuriteInfo.com.Variant.Fonctuzim.1.13267.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.1068-1.UNOFFICIAL
Create hunting rule

Porcupine.MSIL.Kryptik.ACZJ.101882.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
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f77cc90c-cbdf-4600-b0bb-32367cfcbb38
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/862890
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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: 495318 Sample: Inquiry-URGENT.exe Startdate: 01/10/2021 Architecture: WINDOWS Score: 100 31 www.shyuehuan.com 2->31 33 www.bhadanamedia.digital 2->33 35 bhadanamedia.digital 2->35 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 6 other signatures 2->59 10 Inquiry-URGENT.exe 3 2->10         started        signatures3 process4 file5 29 C:\Users\user\...\Inquiry-URGENT.exe.log, ASCII 10->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 10->61 63 Injects a PE file into a foreign processes 10->63 14 Inquiry-URGENT.exe 10->14         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 17 chkdsk.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 43 Self deletion via cmd delete 17->43 45 Modifies the context of a thread in another process (thread injection) 17->45 47 Maps a DLL or memory area into another process 17->47 49 Tries to detect virtualization through RDTSC time measurements 17->49 23 cmd.exe 1 17->23         started        37 www.trasportesemmanuel.com 162.241.61.210, 49803, 80 UNIFIEDLAYER-AS-1US United States 20->37 39 www.nutritionhawks.com 74.208.236.139, 49801, 80 ONEANDONE-ASBrauerstrasse48DE United States 20->39 41 3 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 25 autofmt.exe 20->25         started        signatures11 process12 process13 27 conhost.exe 23->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-10-01 10:48:11 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yggvxl3sonmkqy22kh6hz62mh5gjbr4kxtwpaup6wrkagi7jq5da._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1076b9efbc0e135c85f1228253f9a1d2f35f4fd49c70d290de72808f72bd56eb
Formbook
115716164b2092df207c750d11a2b4ce05bee204b7f21f1f62d93a5b7d78afa1
Formbook
1999253e5409121ca9810f0a75358043ed34c6fbd8444423cd01f935a51ad64d
Formbook
2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776
Formbook
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
695b006f3b83048d47ea1fcae9d7cbacac8f82b4f3d2908ca20f06788e8b3b92
Formbook
699ac8f16c67cda47a80657cce69cbb8b42d711a9e4609ad6a8ff2ed84119b01
Formbook
87fb0ca5b0ebcc0dc80aeca8065b2e2bf1ec14cade124316227646bc59ad237c
Formbook
9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87
Formbook
c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45
Formbook
+ 10'098 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b5ce loader rat
Link:
https://tria.ge/reports/211001-x3r25adaf8/
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
Malware Config
C2 Extraction:
http://www.rheilea.com/b5ce/
Unpacked files
SH256 hash:
142d782507a3a68a4d1dea29e52f0699923a9c2b09803813a91087fd28557389
MD5 hash:
c10bac73d5f73b68877844c80e799670
SHA1 hash:
3c07ba2b4c7896264925e18f2c46eae383238b9c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c8fbba69-074f-498c-aece-678c3265bb0b/
Parent samples :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 hash:
10668ddfc1d96b105bf6e0fea2430936b49dc53be6563e51683f4809870b1d59
MD5 hash:
0d583639b5c198fabaa5ade1f1d6e40c
SHA1 hash:
e5f1e25e71bb840407e2bcfa94399c73737d1d81
Link:
https://www.unpac.me/results/c8fbba69-074f-498c-aece-678c3265bb0b/
SH256 hash:
8284626bb324db0a4b2516f9b5dc1da92a26e6315f7a2fe771079a99021125fe
MD5 hash:
eaddb22aa4c81beb01cd9f45fb47809c
SHA1 hash:
dca3c2c7c76f332ad5cf31ab7be227de4e0aa6c8
Link:
https://www.unpac.me/results/c8fbba69-074f-498c-aece-678c3265bb0b/
SH256 hash:
c3c99d057c477949c2e9c796e62dcfe3519b6fc7da1745f5a4821b53685efcaf
MD5 hash:
24a789d77cab5158ede8cf4984912624
SHA1 hash:
0378385461ff43eade2a53b4ffc6d3ce3f7bd85a
Link:
https://www.unpac.me/results/c8fbba69-074f-498c-aece-678c3265bb0b/
SH256 hash:
c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746
MD5 hash:
7c347b3aba43cefc31e91fede356961b
SHA1 hash:
58bb9e282a8d6c95941d310a23010718901c58dd
Link:
https://www.unpac.me/results/c8fbba69-074f-498c-aece-678c3265bb0b/
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/c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746

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.

Malspam

Formbook

Executable exe c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194048/

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