MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f
SHA3-384 hash: 5bcc5c13123878397c95257539b1f42c66b981112ab4d55984a51a0b63edc63f3b360f136577cdfca21c70b9b9870847
SHA1 hash: aa9ca98955157ca28bdbb1d8d29c3d1af2e28023
MD5 hash: 61ffb4ad4721f51413075923b2e9468d
humanhash: utah-indigo-vegan-pizza
File name:RRW9901200241.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:333'312 bytes
First seen:2021-01-13 20:12:34 UTC
Last seen:2021-01-20 16:30:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e7da020c2fad0c59a3d5e97971484548 (3 x Formbook, 2 x AgentTesla, 2 x Loki)
ssdeep 6144:N19ayEbgUCAOTYANcqIW2yny6uvfb+OYITDbJZyA4JDh17ZST0b+caI:39ay0grp2yn16fb+OBXiDJ9VZGKcI
TLSH E664F19E31E2D432C0B6127192988BB38579BD32027484B7FBEC5C2E5EB87D0157666F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: server.allaboutoffice.gr
Sending IP: 94.130.138.183
From: compras <compras@improvengsrl.com>
Reply-To: compras <infotec@2trom.com>
Subject: TRANSFERENCIA
Attachment: 20210113.zip (contains "RRW9901200241.exe")

Intelligence

File Origin
# of uploads :
9
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RRW9901200241.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 05:33:00 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/189587f1-4592-4ae6-a619-a4b5ec05e39c

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/111851/
Detection(s):
SecuriteInfo.com.Artemis61FFB4AD4721.6646.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser 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/580656
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
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
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: 339369 Sample: RRW9901200241.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 34 www.monkeytrivia.com 2->34 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 6 other signatures 2->44 11 RRW9901200241.exe 2->11         started        signatures3 process4 signatures5 52 Maps a DLL or memory area into another process 11->52 54 Tries to detect virtualization through RDTSC time measurements 11->54 14 RRW9901200241.exe 11->14         started        process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 28 www.unitvn.com 112.213.89.130, 49755, 80 SUPERDATA-AS-VNSUPERDATA-VN Viet Nam 17->28 30 www.toastxpress.com 161.35.25.247, 49748, 80 DIGITALOCEAN-ASNUS United States 17->30 32 5 other IPs or domains 17->32 36 System process connects to network (likely due to code injection or exploit) 17->36 21 cmd.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 11:34:45 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=krxiopu6orxo52ol5u4r752ghtqzeci64d7vdqdwfeo2lwbw6zhq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210113-g37dqjny3n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.unitvn.com/krc/
Unpacked files
SH256 hash:
546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f
MD5 hash:
61ffb4ad4721f51413075923b2e9468d
SHA1 hash:
aa9ca98955157ca28bdbb1d8d29c3d1af2e28023
Link:
https://www.unpac.me/results/351f1636-156a-4d72-a188-e3187d5ee4e3/
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/546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f

File information

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

Malspam

Formbook

zip 79f835f49f5cb82f5f1f36f03829eec12ecb5bf06c38fd96d7bbae33e18d9171

Formbook

Executable exe 546e873e9e746eeee9cbed391ff7463ce192091ee0ff51c076291da5d836f64f

(this sample)

  
Dropped by
MD5 80876be009e51b5d5292487e09460830
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 79f835f49f5cb82f5f1f36f03829eec12ecb5bf06c38fd96d7bbae33e18d9171
Cape
Cape
https://www.capesandbox.com/analysis/111851/

Comments