MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809
SHA3-384 hash: 0cfd27c79c5beb19e78ddbdd7260490882a62b511b2e267aac785f08dce33a15df568924f29108a800dfd98a33d59c42
SHA1 hash: 2cb799b39568a9d94604e321ce63fe53c191c2ce
MD5 hash: 1cdde3f01f1eaa87f370c6ff7793deb2
humanhash: violet-grey-whiskey-one
File name:Documentscanner2021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'231'360 bytes
First seen:2021-07-01 06:27:24 UTC
Last seen:2021-07-01 07:57:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 24576:zYW7SrvaVIbAhzhDMFsskO+5+8U+CATwScq1lhx:asI0hzhDnlhJUJYh
Threatray 6'166 similar samples on MalwareBazaar
TLSH FD45E017F344EA45C8562238CCEFC2B42375EDD67C129B0B2D99BAEE3DB2315C8552A4
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documentscanner2021.exe
Verdict:
Malicious activity
Analysis date:
2021-07-01 06:30:49 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/bcd7461e-e0f6-419a-b1dc-bf3abc712ebc

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/169058/
Detection(s):
SecuriteInfo.com.Artemis1CDDE3F01F1E.7635.10881.UNOFFICIAL
Create hunting rule

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:
njRAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b46c85e2-25c4-4a7c-9848-18677948251d
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/810360
Signature
.NET source code contains method to dynamically call methods (often used by packers)
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442771 Sample: Documentscanner2021.exe Startdate: 01/07/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 11 other signatures 2->52 10 Documentscanner2021.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\Roaming\eYaxYRgf.exe, PE32 10->32 dropped 34 C:\Users\...\eYaxYRgf.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp6811.tmp, XML 10->36 dropped 38 C:\Users\user\...\Documentscanner2021.exe.log, ASCII 10->38 dropped 62 Uses schtasks.exe or at.exe to add and modify task schedules 10->62 64 Tries to detect virtualization through RDTSC time measurements 10->64 14 Documentscanner2021.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 Queues an APC in another process (thread injection) 14->72 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 stoic-goldstine-496ec6.netlify.app 206.189.50.215, 49718, 80 DIGITALOCEAN-ASNUS United States 19->40 42 www.creatorscalculator.com 19->42 44 2 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 cmd.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809/
Threat name:
Win32.PUA.Wacapew
Create hunting rule
Status:
Malicious
First seen:
2021-07-01 04:16:07 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hbjz4gjbvpoflwtjtudkgl5qinqqz7umcpvrabg4rksqqqt4naeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2a728511ab345b4207ea5959439df12205796548388cc170b427110f9cc247dd
Formbook
38c8743572d600fee9623ff305b4e6a78c033576f4ca63e6e5f8ab1c9f6047ce
Formbook
3a35df53c702f348d3693309c29fe3044d50ecf4be8648b787e74f79f5d2ceea
Formbook
4d90c368dbb4c085f00a9d323996a1c6235acd5afadcbcf935d0b56a432a3410
Formbook
966de298a417004b81550a9b3ac5cebe87baa97fcb91c985f005258025fc1497
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
bdc84c917558fe1a4055309a8d6ad6d89d2cdf5a6741c218ace44f70489f9260
Formbook
c347c2d7579053d263f6ab6eddca7bd03691ebab93b30b5caba462caa7106beb
Formbook
e6e7575f09a3e973c9b315f3206448f9ddd04b3b8ca39d126e02bad763a17948
Formbook
f83b9181caf9fca96aa780504a6b8aeeb30ebde24c32e2943969586a75c4a70e
Formbook
+ 6'156 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210701-3hpztyw1ye/
Behaviour
Creates scheduled task(s)
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.pushorder.com/nmda/
Unpacked files
SH256 hash:
0af47cf8a8041e5a50adf2fbbc4403d02d90d5ce7ce728fa81f3df441c03d793
MD5 hash:
cfb00f8b42ef3c1271a361aca79173e3
SHA1 hash:
8816ef183da13c62121c257f1f24ea4e3aa405e9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e812762f-5b63-4d14-ab65-dee7d4bd7d04/
Parent samples :
e6e7575f09a3e973c9b315f3206448f9ddd04b3b8ca39d126e02bad763a17948
360aa7350fa68fbe5ee11dea4c0291a23fa65fce3fb8ce37a0649e5e86d26cb4
3a35df53c702f348d3693309c29fe3044d50ecf4be8648b787e74f79f5d2ceea
38c8743572d600fee9623ff305b4e6a78c033576f4ca63e6e5f8ab1c9f6047ce
966de298a417004b81550a9b3ac5cebe87baa97fcb91c985f005258025fc1497
ebf3a8928d8bbaabfec8b7e93eb0f48469a665bc0b15d9261218012378ffb9c1
38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809
f6bb8018c90c49a3b09ad5b94cbfe5009b59abdee04d05be8f4ae8825f71cf19
SH256 hash:
1c5e0a0d909d1da24af87967a1e154c8aa490a1f99c6624e7214d20eb84f4fec
MD5 hash:
81faf15c7e3c9446d906659f7c7a9f16
SHA1 hash:
d7e05a22b109ce608109dc509029a7fe22b4b8bf
Link:
https://www.unpac.me/results/e812762f-5b63-4d14-ab65-dee7d4bd7d04/
SH256 hash:
743644da6fb075f1f5aa210ba10b92ce7e97486fffcf7aa2d15b6eb803b9bc0d
MD5 hash:
e7187384bfcfc89644df42d131c20040
SHA1 hash:
4667a63983822d4d57922dd81b81c9d6b4ccfdaf
Link:
https://www.unpac.me/results/e812762f-5b63-4d14-ab65-dee7d4bd7d04/
SH256 hash:
38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809
MD5 hash:
1cdde3f01f1eaa87f370c6ff7793deb2
SHA1 hash:
2cb799b39568a9d94604e321ce63fe53c191c2ce
Link:
https://www.unpac.me/results/e812762f-5b63-4d14-ab65-dee7d4bd7d04/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/169058/

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