MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a
SHA3-384 hash: bc007c733f7a84058322d36959b4a31ea9ecb8b1a588eef4ecf7929780570d943735515b7b5a0ad6567596bdeb656ac6
SHA1 hash: 2d13c0cf3d118f33fa8946bf3614bc937b683449
MD5 hash: 8235065472641727e9e07dc700dc5d52
humanhash: foxtrot-east-kitten-beryllium
File name:shipping document008476_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:210'534 bytes
First seen:2021-03-01 12:10:25 UTC
Last seen:2021-03-01 14:25:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT)
ssdeep 3072:Bf1BDZ0kVB67Duw9AMcjbM+/syOD1bR3BfLVi0VgKB/AFxeRh5KbeTIr5tkacxWr:B9X0GPCPrD1VR64h5+eMrTKMYOXf
Threatray 3'992 similar samples on MalwareBazaar
TLSH 5F2412271AD0ECA7D68343B04D7A97A7AF9CA72411B84A8347D44FD47C229D39D0F2B2
Reporter fabjer
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
shipping document008476_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-03-01 12:11:10 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/4f8520c4-1c4f-4c54-8172-4b14e9d6fad4

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/120208/
Detection(s):
PUA.Win.Downloader.Soft32downloader-6691270-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/622039
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 360010 Sample: shipping document008476_pdf.exe Startdate: 01/03/2021 Architecture: WINDOWS Score: 100 32 www.biomedms.com 2->32 34 biomedms.com 2->34 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Multi AV Scanner detection for domain / URL 2->46 48 Found malware configuration 2->48 50 11 other signatures 2->50 11 shipping document008476_pdf.exe 11 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\ph883quia91az.dll, PE32 11->30 dropped 60 Maps a DLL or memory area into another process 11->60 15 shipping document008476_pdf.exe 11->15         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 Queues an APC in another process (thread injection) 15->68 18 explorer.exe 15->18 injected process9 dnsIp10 36 tourvirtualonline.com 178.33.118.110, 49730, 80 OVHFR France 18->36 38 www.albeider.com 85.13.144.165, 49733, 80 NMM-ASD-02742FriedersdorfHauptstrasse68DE Germany 18->38 40 14 other IPs or domains 18->40 52 System process connects to network (likely due to code injection or exploit) 18->52 22 raserver.exe 12 18->22         started        signatures11 process12 dnsIp13 42 www.dadi2023.xyz 22->42 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a/
Threat name:
Win32.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2021-03-01 03:51:19 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygdxxeo7vfb5pgrrh6khrwg5ixoqrswynazan2b3txvojnqplzna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
29f2ebfc9928fcb053f9c6fb9e2bdd9db39d8a17cb7859502e8e4aa66de00526
Formbook
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Formbook
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6a37a2a65393b805bbe4e7e4e42b642da433e9caa7436aaeb9df8ab0fc6679b9
Formbook
92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c
Formbook
ad855c55e13ef5274a20805a3836b508c29cae12d0a2de2807aed08ed4090ddd
Formbook
bf07178f2c85eed5d1e0feafc5c312fce344c6ad7666b5be2abf736e6af94169
Formbook
d8e0edf1cca3b6edefcd830e233131c593997b5bd4454891dc1b70614862f718
Formbook
e836c2aecd7a2ae83a5bb088780d9e7b8cd6c3a7ff6b9c3f1261bfd1f53dbef7
Formbook
+ 3'982 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210301-tlcedechp2/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.eleriwyn.com/xgxp/
Unpacked files
SH256 hash:
c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a
MD5 hash:
8235065472641727e9e07dc700dc5d52
SHA1 hash:
2d13c0cf3d118f33fa8946bf3614bc937b683449
Link:
https://www.unpac.me/results/b276db36-7e94-424f-a12f-5704a8d57379/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a

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_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

arj f4fe7b35ba11b1a71710ed3406fe3666abb6e933c1724eacf25bd36c7cb47c71

Formbook

Executable exe c1877b91dfa943d79a313f9478d8dd45dd08cad8683206e83b9deae4b60f5e5a

(this sample)

  
Dropped by
SHA256 f4fe7b35ba11b1a71710ed3406fe3666abb6e933c1724eacf25bd36c7cb47c71
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/120208/

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