MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10
SHA3-384 hash: b0fff4e48dd1ee18eec96c6249512d56cfca80525a0e24a3b1c7e14d8ff8799f80f42f05a0137ce0197781cd7377e95c
SHA1 hash: 5fb3eb9f806aa20633a399931cff86419fa7dd8f
MD5 hash: d3ab888eb56ef9716e5cfaf7fa164ac8
humanhash: oranges-indigo-march-west
File name:R2P78YZdvFH5ZJh.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:793'600 bytes
First seen:2021-09-20 11:27:49 UTC
Last seen:2021-09-20 11:30:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:kFqsmtiK5oCZKTnYKEeLOrV8uWbPL672Zl4P+5AYQAeQw5USLLxDOD5GQKx:Q+Fo31EpWxZFDwDFOD5ZKx
Threatray 9'366 similar samples on MalwareBazaar
TLSH T192F49DC17D47D89BF4DF29F3986FC12011656E9D9161C73D2682BA2B65F330230ABA4E
File icon (PE):PE icon
dhash icon b282b8a4a6929e9e (23 x Formbook, 20 x AgentTesla, 9 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
R2P78YZdvFH5ZJh.exe
Verdict:
Malicious activity
Analysis date:
2021-09-20 11:30:47 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/15f428d7-c7e6-43d5-8c10-0b88b939dc2e

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/189406/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-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
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/19808f7e-cd0b-41b5-a994-ff4bdcce1da8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/854023
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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)
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 486454 Sample: R2P78YZdvFH5ZJh.exe Startdate: 20/09/2021 Architecture: WINDOWS Score: 100 33 www.jejuhaenyeo.net 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 6 other signatures 2->47 11 R2P78YZdvFH5ZJh.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\R2P78YZdvFH5ZJh.exe.log, ASCII 11->31 dropped 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Injects a PE file into a foreign processes 11->61 15 MSBuild.exe 11->15         started        18 MSBuild.exe 11->18         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 20 explorer.exe 15->20 injected 71 Tries to detect virtualization through RDTSC time measurements 18->71 process9 dnsIp10 35 parkingpage.namecheap.com 198.54.117.218, 49866, 49867, 80 NAMECHEAP-NETUS United States 20->35 37 www.cpassminimedicalschools.info 206.188.193.100, 49843, 80 DEFENSE-NETUS United States 20->37 39 8 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 24 msdt.exe 20->24         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-20 11:06:51 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nlhrx3ehvgyguy5mhptchjjh27cbtul3xcrfrnt6f56mfrqhzqia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
16f669b8657b76f78a71e28f4b475856eddccfd143f2128275212b338aca8620
Formbook
3803dec5e2ab718dedda091e9ee84b588545614ae3d54aa78d956cec21128fda
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
7b4c1bf9a15a419080fe02866aa26f162f79d5e01763c6af5915b07988556223
Formbook
9998ff1d42d8af0fcc166bea36887eebf182e91d1816853d9f80e6cbbbaf9145
Formbook
a0d1e3fbe11fcbbea9dcad1880e23ea531c01c20fbbf383174cd420349657a01
Formbook
bf6ae876108b5fec915d91bd36d3ccd22c8593be29412521c32a4b3f11a757f0
Formbook
e51c60f40080414b74c2eeef62780b28aa31c7875dada6dc2097323a61cc8396
Formbook
f1540e89eeb7046cd265d37ef63a6d282a1ff8a89875193ae775582e74205594
Formbook
+ 9'356 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:gjeh loader rat
Link:
https://tria.ge/reports/210920-nk1f4sdhd2/
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
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.getaudionow.com/gjeh/
Unpacked files
SH256 hash:
fb12b908851c176fa02f78aaffa4c2701c0529764631f5efd91b388774956f20
MD5 hash:
762633281627890c2ec1a04393db0201
SHA1 hash:
92a1947e2989fe9572f561fa6642f7920c3f2330
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/355eb55c-ee0d-44d8-8f06-b00d271ab632/
Parent samples :
7b4c1bf9a15a419080fe02866aa26f162f79d5e01763c6af5915b07988556223
6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10
0693c816986f73899e351e1989103e680c336f401cca1d14f5bce3b5865cfee6
115716164b2092df207c750d11a2b4ce05bee204b7f21f1f62d93a5b7d78afa1
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/355eb55c-ee0d-44d8-8f06-b00d271ab632/
SH256 hash:
f360a5b563511cd0222c28ea3904fa888d146558814e4fc96604416cdd7aa16e
MD5 hash:
530f8562fef9dea096a27e63a17d56ce
SHA1 hash:
9243fbcaf2d05aa3a37db15c79f1cd9a242a5a27
Link:
https://www.unpac.me/results/355eb55c-ee0d-44d8-8f06-b00d271ab632/
SH256 hash:
e4b313b8b21d3f101f44d41d28c3b647e7ca162b22f3b0a323f590b2004c3957
MD5 hash:
e615e6a0d309102a53dda8349be3754e
SHA1 hash:
3fe9572a1d38b898787d890df89b84adb0916601
Link:
https://www.unpac.me/results/355eb55c-ee0d-44d8-8f06-b00d271ab632/
SH256 hash:
6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10
MD5 hash:
d3ab888eb56ef9716e5cfaf7fa164ac8
SHA1 hash:
5fb3eb9f806aa20633a399931cff86419fa7dd8f
Link:
https://www.unpac.me/results/355eb55c-ee0d-44d8-8f06-b00d271ab632/
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/6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10

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 6acf1bec87a9b06a63ac3be623a527d7c419d17bb8a258b67e2f7cc2c607cc10

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/189406/

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