MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac. 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 1 File information Comments
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SHA256 hash: e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac
SHA3-384 hash: 0539b47799575353553cd75c53d123879f0116493981bd5ed360d420a17d6ccab9cf95c115fe9d6c2fe3c76abe94c90c
SHA1 hash: 95b478c57de28b87d6bd87dd32a4faec02b0d620
MD5 hash: 3a5c5bb43232e4e48b63cdf123dec876
humanhash: river-foxtrot-vegan-twenty
File name:rrwq200123.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:259'828 bytes
First seen:2021-10-18 12:19:17 UTC
Last seen:2021-10-18 13:31:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 3072:wBynOpL12riocLMjve4LOk2AcxISCGn2rc2gGw7cMC9oyZ9rUoyBz92bO511D0tv:wBlL/c/LOk2Ac3CGn2cb1n5LD0t2lDy
Threatray 10'600 similar samples on MalwareBazaar
TLSH T14E44136BBAF1E8EBF43609B19C3B570FD17166052681278747302EF62D20BC7951BE92
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
95b478c57de28b87d6bd87dd32a4faec02b0d620
Verdict:
Malicious activity
Analysis date:
2021-10-18 13:09:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b6a782e2-5297-449d-bad3-eec1a94ff02e

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/198168/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.1.3265.30534.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/616d6679db358dd15ebf64e7/reports/57a61a65-a9b2-47c8-ad46-5ace5a0d7c5a/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/02067c8f-99c1-49a5-8191-ffc343026b54
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872250
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 504679 Sample: rrwq200123.exe Startdate: 18/10/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 4 other signatures 2->42 10 rrwq200123.exe 17 2->10         started        process3 file4 28 C:\Users\user\AppData\...\ylbzgkuxqsi.dll, PE32 10->28 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 rrwq200123.exe 10->14         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 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.longhang.xyz 17->30 32 www.novaprint.pro 205.144.171.168, 49842, 80 ST-BGPUS United States 17->32 34 2 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 cmd.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2021-10-18 12:20:10 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4xv4i47clhwfpyvigfdxwre52b6bggmmbw3uzztxgkupzzm6ewwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c
Formbook
c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788
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d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
e6aaec2b958d4b734ff02c7c63b7e24a619eef826efb16b955ebe5306b9953aa
Formbook
f840ca48e6381b385534156b8245c39dee4d1c95e18569c91b5537ff2f20aa7d
Formbook
fa0d4eeae6c743ddc44d9664b0e6d44238beff477d1f4e9a560e68026a4264d9
Formbook
fa5502396dc7ec0fc5508d901eb8b3e555558cdbaff338a1911db0edd4563b78
Formbook
+ 10'590 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rv9n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211018-phstxseebp/
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 WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.cjspizza.net/rv9n/
Unpacked files
SH256 hash:
e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac
MD5 hash:
3a5c5bb43232e4e48b63cdf123dec876
SHA1 hash:
95b478c57de28b87d6bd87dd32a4faec02b0d620
Link:
https://www.unpac.me/results/d236b580-2d79-4b5e-8b8e-a80ff4fdcc77/
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/e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac

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

File information

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

Malspam

Formbook

Executable exe e5ebc473e259ec57e2a831477b449dd07c13198c0db74ce67732a8fce59e25ac

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198168/

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