MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a1b8316f5ab5e580a39374469dd8029949c791b6ac33627b3824868bd5aaf28. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7a1b8316f5ab5e580a39374469dd8029949c791b6ac33627b3824868bd5aaf28
SHA3-384 hash: fedd70e9020942c22f065f66f7c7768cffdb5682f1ec8367fc877eb92f0c43a17953a7aa385ea5f1c69ef5d66e706fcf
SHA1 hash: e7e9f311c61a9aa1537053e96f9b8f5273c47dee
MD5 hash: 7d22b7632fc02e12438e7748eca086b4
humanhash: paris-high-spring-kilo
File name:7d22b7632fc02e12438e7748eca086b4
Download: download sample
Signature Formbook
Create hunting rule
File size:322'560 bytes
First seen:2021-11-13 10:42:32 UTC
Last seen:2021-11-13 13:52:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:s0TXgBrfVjChpKneYHzQHuCl0knGuorc0IOOr6aee4asD:skgRRWpngzsue0knlOlvZas
Threatray 11'157 similar samples on MalwareBazaar
TLSH T1DD641216A336DB35E8975AB97830401617B4F6CA2D11FD2C0D25F0B826BB3FA4A507DB
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/205438/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.21358.24231.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/618f96b83edf00a722d1d38b/reports/00db461a-0938-4c68-afbe-29869997467d/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/13dfd640-61ac-4471-b4d4-1d27776d9bcd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/888534
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 521003 Sample: vPEG0WgAiF Startdate: 13/11/2021 Architecture: WINDOWS Score: 100 29 www.whguideinfrared.com 2->29 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 6 other signatures 2->49 10 vPEG0WgAiF.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\vPEG0WgAiF.exe.log, ASCII 10->27 dropped 51 Uses netstat to query active network connections and open ports 10->51 53 Tries to detect virtualization through RDTSC time measurements 10->53 55 Injects a PE file into a foreign processes 10->55 14 vPEG0WgAiF.exe 10->14         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 NETSTAT.EXE 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 33 Self deletion via cmd delete 17->33 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Tries to detect virtualization through RDTSC time measurements 17->39 23 cmd.exe 1 17->23         started        31 www.ambassadorworldnews.com 20->31 41 System process connects to network (likely due to code injection or exploit) 20->41 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7a1b8316f5ab5e580a39374469dd8029949c791b6ac33627b3824868bd5aaf28/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-13 10:43:04 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c33fe39195569a868cf9f87d3aff16e72f5a54c4e52a852b8f986d121fa47e8
Formbook
0cf11de8a0ce67a46203ae419f2aa7bb988ae3088dc4f33158dccc55b97e4a7d
Formbook
29df0bb962a305621b5f1d2a5cf0eaeae9381872e2a329230e833e6db7c999fa
Formbook
37f6df44b9dd38408fe5682c6d660eceb04a2915b3420576afce05bf3076bc01
Formbook
3cb62c9b4ec92c70df9795f481ccb5b50fd4f260441c23edcaf97c23396bf502
Formbook
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b
Formbook
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a
Formbook
a0cea434baf3e56def0762e975e5c623c47f5ed75edbb6826ee594e260832c31
Formbook
+ 11'147 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:kzk9 rat spyware stealer trojan
Link:
https://tria.ge/reports/211113-mr9gxsbhcr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yourmajordomo.com/kzk9/
Unpacked files
SH256 hash:
d7fa631e8c0ef2919da6cc56b45f684558f8145a6925050eef6f12688b33a937
MD5 hash:
281ccfb28ddcbb6b3a61ef0c417e9138
SHA1 hash:
4d8b2b9ec2af36cfe7d29e7b92eb66691c5e03fd
Link:
https://www.unpac.me/results/17966be5-b7c9-491a-8b1a-6e651d80a368/
SH256 hash:
bd4c4912209802bb457983177d94b220d20dc9775ff973f90bd1c6afd729bc9c
MD5 hash:
8cde05c2cc918a68b075bdb2854c9994
SHA1 hash:
bc3c4e2826370171102ee8b7bd317493cd72c15f
Link:
https://www.unpac.me/results/17966be5-b7c9-491a-8b1a-6e651d80a368/
SH256 hash:
9d083e6711fa05d81808595ccb256ebec25439983acc2a4d9bf991a31767fc9e
MD5 hash:
d4aad17cf070ec0b2ebc71e1c86b5d48
SHA1 hash:
cf86991474de99b5998fd75f68b56dcb4e5879f5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/17966be5-b7c9-491a-8b1a-6e651d80a368/
Parent samples :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 hash:
7a1b8316f5ab5e580a39374469dd8029949c791b6ac33627b3824868bd5aaf28
MD5 hash:
7d22b7632fc02e12438e7748eca086b4
SHA1 hash:
e7e9f311c61a9aa1537053e96f9b8f5273c47dee
Link:
https://www.unpac.me/results/17966be5-b7c9-491a-8b1a-6e651d80a368/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7a1b8316f5ab/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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.

Web download

Formbook

Executable exe 7a1b8316f5ab5e580a39374469dd8029949c791b6ac33627b3824868bd5aaf28

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1782623/
Cape
Cape
https://www.capesandbox.com/analysis/205438/

Comments


Avatar
zbet commented on 2021-11-13 10:42:34 UTC

url : hxxp://103.147.184.178/774757m/dllhost.exe