MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3
SHA3-384 hash: d4258eb9da249919ee0c18a00a069323410e54d834e56f9bae8df3081cfbdc8717690ff2e8ad8ff2dda257f8f0cb4d72
SHA1 hash: 2941d4f6be287ef7d328faefac68d459dcbe89b0
MD5 hash: dcb0e617ba8b342654625a0d94203e86
humanhash: foxtrot-six-saturn-nitrogen
File name:SOA #220953.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:874'136 bytes
First seen:2021-06-03 19:01:20 UTC
Last seen:2021-06-07 14:31:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c13589351b888eacb104575a16a88b27 (2 x RemcosRAT, 1 x BitRAT, 1 x Formbook)
ssdeep 12288:9wZeGjiyhybwk6VAn0+A2NUj4pfIMNFkKOOikhoAOpbAF++n/tx:9sjhyZn4VuIMzOAAbAl/tx
Threatray 5'619 similar samples on MalwareBazaar
TLSH C9059F22A6F1DC33C1B2297F4F4AB2D85C2D7E412DE4B44676D4794CFF3A641B91A08A
Reporter GovCERT_CH
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Invincea, Inc.
Issuer:DigiCert High Assurance Code Signing CA-1
Algorithm:sha1WithRSAEncryption
Valid from:2018-01-05T00:00:00Z
Valid to:2019-12-31T12:00:00Z
Serial number: 0be3f393d1ef0272aed0e2319c1b5dd0
Intelligence: 19 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: b88acbbee18f369f37cef087fabc3473805bf9fa75f591070a1c1c779d35741b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
6
# of downloads :
204
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA #220953.exe
Verdict:
Malicious activity
Analysis date:
2021-06-03 19:04:50 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/5a5e4f26-91a0-4678-b223-f0f7f7acd54c

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/164492/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Sending a UDP request
Sending a custom TCP request
Creating a file
Launching a process
Launching cmd.exe command interpreter
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/796938
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Process Start Without DLL
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 429334 Sample: SOA #220953.exe Startdate: 03/06/2021 Architecture: WINDOWS Score: 100 33 www.extinction-brewery.com 2->33 35 www.aromasofambrosia.com 2->35 37 2 other IPs or domains 2->37 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 8 other signatures 2->63 10 SOA #220953.exe 1 19 2->10         started        signatures3 process4 dnsIp5 47 cdn.discordapp.com 162.159.129.233, 443, 49716, 49717 CLOUDFLARENETUS United States 10->47 31 C:\Users\Publicbehaviorgraphtmsuobehaviorgraphtmsuo.exe, PE32 10->31 dropped 73 Modifies the context of a thread in another process (thread injection) 10->73 75 Maps a DLL or memory area into another process 10->75 77 Sample uses process hollowing technique 10->77 79 Queues an APC in another process (thread injection) 10->79 15 explorer.exe 4 10->15 injected file6 signatures7 process8 dnsIp9 49 www.montessorifibayti.com 104.21.0.208, 49739, 80 CLOUDFLARENETUS United States 15->49 51 simplystunner.com 66.235.200.113, 49743, 80 CLOUDFLARENETUS United States 15->51 53 3 other IPs or domains 15->53 55 System process connects to network (likely due to code injection or exploit) 15->55 19 rundll32.exe 15->19         started        22 Gtmsuo.exe 13 15->22         started        25 Gtmsuo.exe 14 15->25         started        signatures10 process11 dnsIp12 65 Modifies the context of a thread in another process (thread injection) 19->65 67 Maps a DLL or memory area into another process 19->67 69 Tries to detect virtualization through RDTSC time measurements 19->69 27 cmd.exe 1 19->27         started        39 162.159.130.233, 443, 49732 CLOUDFLARENETUS United States 22->39 41 cdn.discordapp.com 22->41 71 Machine Learning detection for dropped file 22->71 43 162.159.135.233, 443, 49733 CLOUDFLARENETUS United States 25->43 45 cdn.discordapp.com 25->45 signatures13 process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3/
Threat name:
Win32.Trojan.Jacard
Create hunting rule
Status:
Malicious
First seen:
2021-06-03 19:02:10 UTC
File Type:
PE (Exe)
Extracted files:
71
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ezrsd44rrkugug3zcvctukkmuxbwx4qhezd3kson2npve2ztowrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
010192b5d3b3e85925fc312177759597b78fa7f6feb282cf3a743aae9f53067d
Formbook
0128dcf3bcd255f622b36968f61b8b69efcddd6c3913c0694d75e1ec81bea378
Formbook
3cec9bd714745b020366af9537184c619794ef4dee36c99093f53b243c97dcc1
Formbook
672795699cca5d2353cd8a39ea7d1c0f2a779b3c943a7c3630884b2141a82214
Formbook
6c6dd45a923d7eb6fa1f114a5a4c20fab27bc03e44a5c8cb8627d43da93dfe48
Formbook
75eef833ff0c8434f8b093e781b54b3d33c0555613ffe75e05fa6c5bec70a77d
Formbook
7e88f1c425154e6fff6d031aaaa4d8bb4c8ff131e429f44310fd936bfc08b357
Formbook
95eedb3eaf98ec12d5f66609278d43f94e1f635420d413ee0672bbf9434aafa4
Formbook
9c2725c92b6d2ab8d0a3d786358751d8a449fd8bfd02adce7e80bd5e07714d93
Formbook
d04efc1f583b9d7a2f2e600a43eeb8fb8359432c591a4f8cc583caf881097421
Formbook
+ 5'609 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader persistence rat
Link:
https://tria.ge/reports/210603-rm4caqpblj/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.chroniccoasters.com/hme1/
Unpacked files
SH256 hash:
69a42b5c24ebef23f7970173d7bf2b88b61fd78c1347b13a0b788882a352c0a5
MD5 hash:
3daee6da3a75cea8271ea683e87c1b95
SHA1 hash:
bccdbe30aae59f34579334f90fe6f75b9922969d
Link:
https://www.unpac.me/results/e7458908-b899-4dbd-8472-430b1818fb2f/
SH256 hash:
5381c6276fc0f552d71efe7fb4d43a9e1a1e776c4cb7a572f72207b777ff2a32
MD5 hash:
3e9b080fb62948db627a904b7af653ea
SHA1 hash:
93a66126bdeb846724b41d44c6a7cac15c5ed636
Link:
https://www.unpac.me/results/e7458908-b899-4dbd-8472-430b1818fb2f/
SH256 hash:
f03f90ab14d3474e145aa55e0a7682fa751cde1576b375acacebae0e01c3eff2
MD5 hash:
3ccfe9a4bb1ff6db4a189b3b4025b4c6
SHA1 hash:
1a218037190e6ca67568a186a2978533398afd83
Link:
https://www.unpac.me/results/e7458908-b899-4dbd-8472-430b1818fb2f/
SH256 hash:
266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3
MD5 hash:
dcb0e617ba8b342654625a0d94203e86
SHA1 hash:
2941d4f6be287ef7d328faefac68d459dcbe89b0
Link:
https://www.unpac.me/results/e7458908-b899-4dbd-8472-430b1818fb2f/
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/266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3

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_KB_CERT_0be3f393d1ef0272aed0e2319c1b5dd0
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 266321f3918aa86a1b7915453a294ca5c36bf2072647b549cdd35f526b3375a3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/164492/

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