MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19
SHA3-384 hash: b29e38f81bdb053758828326efde77cf03ccb058c540525092692cda7b442c1008b77d065f9bfd18030c684878e5136e
SHA1 hash: 7d3be8631affd24746beeec725b4ad0d518805b8
MD5 hash: 24de383154bbdc31b305fd25a3ee95db
humanhash: quiet-bakerloo-grey-cold
File name:Inv_7623980.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'141'760 bytes
First seen:2021-07-27 06:17:16 UTC
Last seen:2021-07-28 05:51:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:UFSrFvGhVBnqjNl71y4stHj63BZ7If3ewxKunt93e9cjb0cDxHRfffFUqU3zf7vB:UFSrIUB1ejZuJonQYTDs2
Threatray 6'941 similar samples on MalwareBazaar
TLSH T1CC355A2439FA502AF173EFB94BE4789ADA6FBB333B07A45D109103864723A41DDD153A
dhash icon 1030e8aa96969686 (12 x AgentTesla, 4 x Formbook, 1 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
6
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inv_7623980.exe
Verdict:
Malicious activity
Analysis date:
2021-07-27 06:21:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/21f7e2c2-aa9e-4d10-b94e-cfbbee0d25d4

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/174246/
Detection(s):
SecuriteInfo.com.Variant.Cerbu.108226.11094.9161.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file in the %temp% directory
Creating a window
Delayed writing of the file
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/04878e84-2a92-4df1-8d61-00db4b907b96
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/822140
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 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: 454553 Sample: Inv_7623980.exe Startdate: 27/07/2021 Architecture: WINDOWS Score: 100 31 www.lknstump.com 2->31 33 www.lastminuteminister.com 2->33 35 2 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 5 other signatures 2->49 11 Inv_7623980.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\Inv_7623980.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 Inv_7623980.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.inverservi.com 69.49.115.40, 49749, 80 INFB2-ASUS United States 18->37 39 redevelopment38subhashnagar.com 94.130.13.121, 49758, 80 HETZNER-ASDE Germany 18->39 41 15 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 WWAHost.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-27 05:05:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=peejr6krrqkg4772imfzoxxa6w6bmk3lljo3uaeoavzhieysxqmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
12c961f1b5f752a22c1a3085fc2447749572fbcb35b3c6e46f6fa310b19572b7
Formbook
1432f0240c91b7439722df807e35ef9b4cc9b126f3e5d42cedb27b28751118d7
Formbook
1f608cb60e33615fb8a94a9d240d27cf99bbe344e24a486ed3311623611930a0
Formbook
6f536ae781fd98358126408aa6991b4bb3ec3f9940929a22b25f785b71ec770d
Formbook
81cbdffd1b44ca983180456d058b8eaadf51adbd19600dbbde68be7a4ef09a54
Formbook
c6a1a1a68b5faac43930deeab9cd6745bde62869786e21e0681b3dc0973afa80
Formbook
e07c6115d9384a13918a22ac6f22631f78a9f18f8eaf3a945c6ba80ba91d713e
Formbook
e1fee7ee20f6d3bd6e913baeae737c558014454223d552c125c3f963e7c1a843
Formbook
fe76f52577fe9c5922538b01d85757786985d4da97c706763994a7b617574592
Formbook
+ 6'931 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat suricata
Link:
https://tria.ge/reports/210727-nzl7jrrq92/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.inverservi.com/m6b5/
Unpacked files
SH256 hash:
32ce5da08c6db164245fb0519129ae98d801ec154a1f25778abedf9a5b83fe46
MD5 hash:
0c0af14976d2490df8393a863044583f
SHA1 hash:
e7a9946bfd31d99d770a18a3e78155f37d074ad6
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b31833db-3406-4308-9568-b14e0211d0da/
SH256 hash:
cfe554fe6f4e32639690ecf71608c579adb14f7a4ea131da23ef3d920e52cf34
MD5 hash:
35df1dbabae44de1c5c091e92a7a7009
SHA1 hash:
d49e8ba00e8baa05947e17137ea477c41aa1758c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b31833db-3406-4308-9568-b14e0211d0da/
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/b31833db-3406-4308-9568-b14e0211d0da/
SH256 hash:
62565a5070cb1073b475917cd11c9ffb046c29abe8b06eded77d2f28b1f887d3
MD5 hash:
b74e4151bc7857b711fce991ae756f27
SHA1 hash:
9a5ee8c39f9934b5be36b7ca2c2a1720e25e209b
Link:
https://www.unpac.me/results/b31833db-3406-4308-9568-b14e0211d0da/
SH256 hash:
790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19
MD5 hash:
24de383154bbdc31b305fd25a3ee95db
SHA1 hash:
7d3be8631affd24746beeec725b4ad0d518805b8
Link:
https://www.unpac.me/results/b31833db-3406-4308-9568-b14e0211d0da/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
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:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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 790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/174246/

Comments