MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845
SHA3-384 hash: 8bd8b88a1b84e6257d9c761159ec09d7599490abdba9e740188f2994767de4e5ba8c3ab50df1b690db0a43301cfa3f37
SHA1 hash: 19771440a2ca244b5e422c001a28e06711d30784
MD5 hash: 90a02d1863d8df6ae2b3a4b645e9fee7
humanhash: bluebird-happy-fifteen-april
File name:SOA.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:719'360 bytes
First seen:2021-09-06 12:52:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:0syibR92oV2VN69DVK+hZWsaV4mg/fGT5LUcwwfwllIMvS4AZBiuSnm+r682:0Xi992k2VQj+zvofGT5LUcH
Threatray 5'737 similar samples on MalwareBazaar
TLSH T17EE43A983210759EC957D8368E64DC74AB102CBA530BD213A0E32DEFBA5DA97DF141F2
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
267
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA.exe
Verdict:
Malicious activity
Analysis date:
2021-09-06 13:21:06 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/fb123cd1-d944-42e3-90cc-5fa5067ef487

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/185675/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.25666.1840.5599.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Launching the process to change network settings
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ffb6267a-f9ec-4d8b-854a-bb2641096d13
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846021
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
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)
Multi AV Scanner detection for submitted file
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: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 478454 Sample: SOA.exe Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 31 www.xmjob110.com 2->31 33 pltraffic32.com 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 10 other signatures 2->47 11 SOA.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\SOA.exe.log, ASCII 11->29 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 RegSvcs.exe 11->15         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 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.artepohome.com 91.195.240.117, 49719, 80 SEDO-ASDE Germany 18->35 37 impactaccountingsolutions.com 69.20.104.42, 49726, 80 RACKSPACEUS United States 18->37 39 13 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 svchost.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-06 09:52:49 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehlg44dluwvjj4ghpdwjcsewwxbg3mgbj3etqiwl4acslqqttbcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
00e599fadd6b7cd568751d9741ad77f85a7c9fdea785deed6898f348efd794fd
Formbook
0e5e0b70c6db438a67db5ac483b0a4fc904742bc98ffb6d02b0595c868f3cdf0
Formbook
49217eb71ec8276e6fdb8573c02691fa5b9de9cb14be7b82c4ec6570f78fcfdf
Formbook
6a37a2a65393b805bbe4e7e4e42b642da433e9caa7436aaeb9df8ab0fc6679b9
Formbook
6f16d3f4edabb65e90a4d55adfd531ca7b9b04eda32bb1a5c2489ab2e49f0491
Formbook
80b056a8c2fee08fd3361a8a271dea407425ca335275d49f81a1c50a06d9ed98
Formbook
83238525ac7665d9b4119a287e45aa95a04bc971dd46fde4cebffe92d337f425
Formbook
cc0e5224224cd1137d4cdff798462d06a7e5e39e97858aac2ecc3c27b5c30b42
Formbook
de49b28cd6dd83f9d44c2f649ad7850cff63ef6a9b3890766f164e7472085809
Formbook
f8edd84ac10813b2f9fc0d5e76a5f0036eb56e37197b45653d67403a52ef4a76
Formbook
+ 5'727 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:imm8 loader rat
Link:
https://tria.ge/reports/210906-p4mj2abbd5/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.impactaccountingsolutions.com/imm8/
Unpacked files
SH256 hash:
19ad8f76ee9b6aad9de40d81efac29db12f45a1acb3af6be469ef6ec7ed1b2ac
MD5 hash:
079e47880b0579fdcb175f07bdbec8f2
SHA1 hash:
8a5e1704451077421f748b5c93b50cdb5a39bc52
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a7cd496b-7ae2-499c-b8b2-9a5429148cf2/
Parent samples :
0ae1df4d50a7ed640973980699737b85e8947baef0087c511b4b1ebf8bdc22ba
eeb09100ff7eb31eb91735290de6a3cfe364b50365f4713aef21f7cf3db5744d
37d7d0735e4cedf32ffff58f24330efb4b9fd08cf836ca876350e69ee769ae66
33a9702e83888498799c0144e3a3ac06e095aa452ce066a02a3860dcd90d6bb8
b5a2c6ad35eae14ca13d811a3a1a445fabee8a8aa63625f25520375a20fe44bd
87e35b392f0e6ba445a7b302b087c7c443d7188240b2efb742d01ab7a62534ed
21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/a7cd496b-7ae2-499c-b8b2-9a5429148cf2/
SH256 hash:
be5abc05e75fda57a4ff711db2e16748406bdeea4d3fb80e5d0b72d6d3b50d9d
MD5 hash:
1bb0414b057510764530a4fd6bdbe8cb
SHA1 hash:
24dac884a5b27f6492c6d971ad35d99b93c95f62
Link:
https://www.unpac.me/results/a7cd496b-7ae2-499c-b8b2-9a5429148cf2/
SH256 hash:
21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845
MD5 hash:
90a02d1863d8df6ae2b3a4b645e9fee7
SHA1 hash:
19771440a2ca244b5e422c001a28e06711d30784
Link:
https://www.unpac.me/results/a7cd496b-7ae2-499c-b8b2-9a5429148cf2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 21d66e706ba5aa94f0c778ec914896b5c26db0c14ec93822cbe00525c2139845

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/185675/

Comments