MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e. 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: 5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e
SHA3-384 hash: 6b0a094d741fe4d49ae457083de656d8d2fea30f9afdf099d9ea6e96d123e2f94f488f30231d4eeeb4d2187978c7b696
SHA1 hash: d6c288ddabffcb01e5ac51d2568e62dc9de3f602
MD5 hash: 18397d21dd4fa16b646832238ed1c989
humanhash: kansas-lima-maryland-mango
File name:RJBtzAxzsZrd919.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:525'312 bytes
First seen:2021-09-10 08:55:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:4Htx898nNek4DbF53e0IUFLX6V1hb7EZPsyBe8Mn4+WM5zZ1TU7Ji1+K:qQ76V1hbW04eL5TUcs
Threatray 9'164 similar samples on MalwareBazaar
TLSH T159B4BE243DFA511DF173AFBA5EE4B4929B6EB7733A82E45D1081038A4623F40FD9153A
dhash icon 022c5b52a6a456a9 (8 x Formbook, 7 x AgentTesla, 3 x Loki)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RJBtzAxzsZrd919.exe
Verdict:
Malicious activity
Analysis date:
2021-09-10 08:57:42 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/583ba770-c826-4f64-97e4-eac303e57114

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/186825/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.14265.29347.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b9e6d991-2b3f-4af4-b557-545ad0ccf867
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/848668
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
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 signatures2 2 Behavior Graph ID: 481099 Sample: RJBtzAxzsZrd919.exe Startdate: 10/09/2021 Architecture: WINDOWS Score: 100 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 8 other signatures 2->44 10 RJBtzAxzsZrd919.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\RJBtzAxzsZrd919.exe.log, ASCII 10->30 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 RJBtzAxzsZrd919.exe 10->14         started        17 RJBtzAxzsZrd919.exe 10->17         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.gmignitionswitcheconomicset.com 45.33.20.235, 49811, 80 LINODE-APLinodeLLCUS United States 19->32 34 www.scinuh.com 18.213.250.117, 49816, 80 AMAZON-AESUS United States 19->34 36 2 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 chkdsk.exe 19->23         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 23->48 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-09-10 03:10:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l4abs5ahlu6tvyfslzfolzjddsah7q3nwgbw3c2t6pigetqjlgha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
09f19a43e9a0b736e9fcd33359267340b91a2ccc376c8cda72fac9754c1493c0
Formbook
0cdbab37f443dbdc7fb7aecc5e0b8dfb7b25b7d665397194bb8a137e9b01d44f
Formbook
1b6c5d0594eeb43cf5d85002be1d2dd0f0b6555ca114c73b62215c58cde3cb54
Formbook
47c700a9a4cc5589c3acd273c4536952c5c0db7ad1f94408b4e6097d48fdb581
Formbook
4881e3adf30b0665cdbb38cb90ae0bf3a3395d2f9a4e19daec9c3d6beb2e915a
Formbook
9da4d8126ac0c4c0b68066407e24cf1a36e06f0fc22ef87b0a464f90c1374095
Formbook
dc721b47773f4107cfb81757a60adc56e56b1a81975c2579f35ba599079963c6
Formbook
+ 9'154 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:pm7s rat spyware stealer trojan
Link:
https://tria.ge/reports/210910-kv1yvahge3/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.rafaelcristino.com/pm7s/
Unpacked files
SH256 hash:
42cf8b340eaf4a971d7e5b63ce65ced11e01efa1c080f3f23656e3037038973d
MD5 hash:
5fb5fb990e49f76b6a547fe5800b08f3
SHA1 hash:
3c92c639b1f2a72c2eb3a9bb9213fc98d346746c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bb5bdbe7-d849-46f7-b372-a0e5336bd132/
Parent samples :
1b6c5d0594eeb43cf5d85002be1d2dd0f0b6555ca114c73b62215c58cde3cb54
4881e3adf30b0665cdbb38cb90ae0bf3a3395d2f9a4e19daec9c3d6beb2e915a
47c700a9a4cc5589c3acd273c4536952c5c0db7ad1f94408b4e6097d48fdb581
39f7d2aa6bd4b9aa4854434d59309e3fb16bf91b6b204bfbaa1fc0ad6d452f8e
d7d35002f25eb13d14a68f466db5679be33e14645a4079d242ac488c35531988
e99ee0d03ae293aec74c31a6db628d9fe12be9699365ebf71de4b2bf6e8ca0d5
5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e
a57534ac7570e5be7e25f1c0d9745dc549d56b193ed7b1547e61ae79485edc1c
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
Link:
https://www.unpac.me/results/bb5bdbe7-d849-46f7-b372-a0e5336bd132/
SH256 hash:
01adb366408e0e6e8fc7194c489503fc284ee2e3e25af07fe4b7f08f5de36053
MD5 hash:
9e01630134d687c18c7511c511cae9d4
SHA1 hash:
a0b5e168bc1e30b30b4949d274d2aa6bedb14197
Link:
https://www.unpac.me/results/bb5bdbe7-d849-46f7-b372-a0e5336bd132/
SH256 hash:
5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e
MD5 hash:
18397d21dd4fa16b646832238ed1c989
SHA1 hash:
d6c288ddabffcb01e5ac51d2568e62dc9de3f602
Link:
https://www.unpac.me/results/bb5bdbe7-d849-46f7-b372-a0e5336bd132/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5f001974075d/report/overview.html
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/5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e

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

rar 65d40a8945b27806cf0a88d5c2bfacc5aec0325f351f45082e4385f44725dd90

Formbook

Executable exe 5f001974075d3d3ae0b25e4ae5e5231c807fc36db1836d8b53f3d0624e09598e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 65d40a8945b27806cf0a88d5c2bfacc5aec0325f351f45082e4385f44725dd90
Cape
Cape
https://www.capesandbox.com/analysis/186825/

Comments