MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918
SHA3-384 hash: 2ff4133ae9e4fa2ecfe6983b195b4614ad4c6a49031af32ca6c5e07b9d7e2f040718f0dd8ee1ff1683a4384a00c6cd77
SHA1 hash: 65fc4a981c82e3110ad99838c6a5e74444773123
MD5 hash: 7fcf55a520eed145f0dab4851795c9a4
humanhash: wyoming-moon-carolina-nitrogen
File name:WAYBILL 44 7611 9546 - Joao Carlos.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:731'648 bytes
First seen:2021-12-02 14:25:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:BBzcmhiTfGLfrWTptYlLftLDOi2Ajv+7/3tExPcHBG8tHqChixBFmRq:BBomhibSW8fkMWv6xPcvK8i1Wq
Threatray 11'832 similar samples on MalwareBazaar
TLSH T102F4F12133B84D9BC7BE57FAE020244083F6AA17926AD3DD8D85B1ED19E1F414B07B67
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WAYBILL 44 7611 9546 - Joao Carlos.exe
Verdict:
Malicious activity
Analysis date:
2021-12-02 15:10:10 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/855a296e-5270-452d-a7a7-6079ede2f8e5

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/210744/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a8d797f9d950eb11b6ae77/reports/bee8b86e-83dc-411b-96ab-e44c1ff39ca0/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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f5a3b487-767d-4b22-be26-c87ab55ca2ee
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/900166
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 532648 Sample: WAYBILL 44 7611 9546 - Joao... Startdate: 02/12/2021 Architecture: WINDOWS Score: 100 33 www.urbanfitnessandbeyond.com 2->33 35 www221.wixdns.net 2->35 37 3 other IPs or domains 2->37 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 10 other signatures 2->61 10 WAYBILL 44 7611 9546 - Joao Carlos.exe 3 2->10         started        signatures3 process4 file5 31 WAYBILL 44 7611 95...Joao Carlos.exe.log, ASCII 10->31 dropped 13 WAYBILL 44 7611 9546 - Joao Carlos.exe 10->13         started        process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 13->65 67 Maps a DLL or memory area into another process 13->67 69 Sample uses process hollowing technique 13->69 71 Queues an APC in another process (thread injection) 13->71 16 rundll32.exe 13->16         started        19 explorer.exe 13->19 injected process8 signatures9 45 Self deletion via cmd delete 16->45 47 Modifies the context of a thread in another process (thread injection) 16->47 49 Maps a DLL or memory area into another process 16->49 51 Tries to detect virtualization through RDTSC time measurements 16->51 21 explorer.exe 5 147 16->21         started        25 cmd.exe 1 16->25         started        27 explorer.exe 1 169 16->27         started        53 System process connects to network (likely due to code injection or exploit) 19->53 process10 dnsIp11 39 www.aksmuht.com 164.88.224.51, 49858, 80 CLAYERLIMITED-AS-APClayerLimitedHK South Africa 21->39 41 www.swooshlite.com 75.2.115.196, 49860, 80 AMAZON-02US United States 21->41 43 www.metamarketingwizard.com 21->43 63 System process connects to network (likely due to code injection or exploit) 21->63 29 conhost.exe 25->29         started        signatures12 process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-25 07:24:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
67
AV detection:
26 of 45 (57.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=owai7p5tacvcnaj4k6pxlcxe7wy56aed3wburwtiuxoxcyzovema._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e7da963a847c976589ec16cba08820882e735cdc10d07d78a391e4e63622f28
Formbook
3df54d0e5f1741308cfb7373e54e700b507d690142e085c8d3c9a56741ed1c04
Formbook
42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250
Formbook
54a2b990b0c2c302de42b6b5a6f567e65271eb94594c1a914a28adaae28e571e
Formbook
60f3b28c265ee86ff2fda42a3147348bf53971060d9b97e2cd631a32f80ee0cd
Formbook
79d3e390f7d102dfb3dd6840d95a54fe2dd26a5f90ab8d040be7024e6f9d53fc
Formbook
8a13ce3da212f3557c8d3f43a375fa6e030b400c2da2ca9701bed88f839863fc
Formbook
9fa1cc5263270e7856695780225b4084962371dac2f5d7a921d782dc862f0d05
Formbook
ae1c03af5639fe2515edf78971c8e322e4f5c271944da757583a2f2c372a4231
Formbook
c98eac88f8f4243d7303b806cb58e0a89e33270cb4b33457c91938a2b2746238
Formbook
+ 11'822 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ig34 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211202-rrw9tahfhm/
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.priorlakeheatingandcooling.com/ig34/
Unpacked files
SH256 hash:
47f30b5aaafbf161805f9ce52c4e693ec7d92a28fbf36f80ca7b648f896571bd
MD5 hash:
e85fa9688ea4d7028ff443b932a5892f
SHA1 hash:
c7edba3ff4c223f577f6ed87dda9dee006bd560d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/09a1a132-decd-4d4a-a929-15af33e98e08/
Parent samples :
54a2b990b0c2c302de42b6b5a6f567e65271eb94594c1a914a28adaae28e571e
79d3e390f7d102dfb3dd6840d95a54fe2dd26a5f90ab8d040be7024e6f9d53fc
75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918
4743e4cc67e3d810048f931f66269f54bbfd6dbf3ce5d56bec1f1ba900fadbc5
9980db08a2a5f1e0d871913ba83e0d8d2ce53e48461226b21a212968dcc6acc1
SH256 hash:
f6639a3b21a09ca5e9e43e10f8ac7f822956232806805252096f03f68bc9815c
MD5 hash:
aa334e922c53c5cba0b43c342ac13b14
SHA1 hash:
68109327b5e98174293bb348dfea6a088cbd5d2f
Link:
https://www.unpac.me/results/09a1a132-decd-4d4a-a929-15af33e98e08/
SH256 hash:
c7d649dee82745321d6381988aeaec3be70971568fe44e21b7b2e0d796600bef
MD5 hash:
91ca0b02bef5a1ddc3ac4ec3b3608273
SHA1 hash:
5193d0123f33b1d43fa90cd2eadde2729ce80219
Link:
https://www.unpac.me/results/09a1a132-decd-4d4a-a929-15af33e98e08/
SH256 hash:
75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918
MD5 hash:
7fcf55a520eed145f0dab4851795c9a4
SHA1 hash:
65fc4a981c82e3110ad99838c6a5e74444773123
Link:
https://www.unpac.me/results/09a1a132-decd-4d4a-a929-15af33e98e08/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918

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.

Malspam

Formbook

Executable exe 75808fbfb300aa26813c579f758ae4fdb1df0083dd8348da68a5dd71632ea918

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210744/

Comments