MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73
SHA3-384 hash: 5487824acbc3e58873b677f91f7e0f06f2fc3a69a18b37f0aa4717c752b945e3223878b8cd3f17a54bf6409ccccaaca3
SHA1 hash: 3f82fc43d35b891589c233fcc845bc16d46abfbc
MD5 hash: c85eeeb4ec8451395db6cb5a428c4107
humanhash: black-bravo-papa-salami
File name:PO.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:429'056 bytes
First seen:2021-10-06 11:03:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:eAow0lPoe7H9KWa6JULT28Wuwe5gCh47:FOJBfU5Wxe53h
Threatray 9'911 similar samples on MalwareBazaar
TLSH T10794F1A5A3AB4B0ECD7987F67404A0910BF7A13F2069D3345DC964EE3862F705BE4993
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.exe
Verdict:
Malicious activity
Analysis date:
2021-10-06 11:04:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0ee88285-1db6-49da-8b9f-68d7da25832a

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/195447/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615d82a5b95458900cdd18f8/reports/d3509668-3398-456d-8742-15e046021279/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c047c2f-4ae7-4b9a-b2d1-fb70bfca6066
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/865481
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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: 497906 Sample: PO.exe Startdate: 06/10/2021 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Yara detected AntiVM3 2->46 48 5 other signatures 2->48 10 PO.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\Local\...\tmp1EE2.tmp, XML 10->32 dropped 34 C:\Users\user\AppData\...\PxkoVQQinAb.exe, PE32 10->34 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 10->58 14 RegSvcs.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 2 other signatures 14->66 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 36 www.newlifenowblog.com 19->36 38 www.morganjohnsondesign.online 19->38 40 2 other IPs or domains 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 25 colorcpl.exe 19->25         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 25->52 54 Maps a DLL or memory area into another process 25->54 56 Tries to detect virtualization through RDTSC time measurements 25->56 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/77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-06 11:04:05 UTC
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7nbgwf4p4msvofdapugspcp6dmft4lus7k52mhvtboez7ebzrzq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
085dd3415a1c0c601af338a15905c650935e18505e6ca71bf6ece1602bba19c3
Formbook
3f3c53a643260b21d81b37581469b76fd19edc2740ee31aa983f81b2c65e74a5
Formbook
4dec69f31c55cf28bb74dc237a3880ef1f1543c34f9a4fd9643b6ea9866eeb29
Formbook
543729a7f72081c00b50ebfb1ec6365925756857937766652489076767e330e0
Formbook
5fef6e5e702f6ac33542c50d34d3054d1b957c3afd5dffc8fbeaa81d82fdf562
Formbook
7804b61e9db003a8c658d4288da507be6a478942229af9b4f0753dec75184b86
Formbook
a532458e37a48eb5222790c56e237b35a6bcd75268527e466890123e4c4778e7
Formbook
e32906edfa8d988075e6d062f5ea60f7550595eeef8f1d2177d387dc51f67a5c
Formbook
f230480c3c0154a2f537f30f2f361bfa55d829264672998cd9131b8706161a9d
Formbook
+ 9'901 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:odse rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211006-m591lsbcdr/
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.guncelekspres.com/odse/
Unpacked files
SH256 hash:
f65d38f39df1accd6db2e1a2adc794a8ef34b7f1a9f15c514d766b2d6d4614f0
MD5 hash:
c20fbf2573012e31b1414040e8d42add
SHA1 hash:
cb6024805866ece5ed1bb3d70565772393f4749b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2f3b6bbb-103d-49bf-ba74-97c16abed58e/
Parent samples :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 hash:
0366546171dfeffb29042a6e95d47130273f70ff97080ab6706d95851bb7f0bf
MD5 hash:
512dec859ab82fd539b19d29f6b886e2
SHA1 hash:
d9c5eed8d64e85bd26eceb5668ffa8d0a5102a3a
Link:
https://www.unpac.me/results/2f3b6bbb-103d-49bf-ba74-97c16abed58e/
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
Link:
https://www.unpac.me/results/2f3b6bbb-103d-49bf-ba74-97c16abed58e/
SH256 hash:
77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73
MD5 hash:
c85eeeb4ec8451395db6cb5a428c4107
SHA1 hash:
3f82fc43d35b891589c233fcc845bc16d46abfbc
Link:
https://www.unpac.me/results/2f3b6bbb-103d-49bf-ba74-97c16abed58e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/77da1358bc7f/report/overview.html
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/77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73

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 77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/195447/

Comments