MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43974f14d79cef415355192eadf724a2a2f605d230eafaae0b5391c920971785. 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: 43974f14d79cef415355192eadf724a2a2f605d230eafaae0b5391c920971785
SHA3-384 hash: b3396634a8a1e96beb8eba938834f400261f9410cba601b74541561321df39f4bbf5e03a4614410fa8afac9090344889
SHA1 hash: 03ffc4022e5cdc5c55483413a6329acd29e5e3ca
MD5 hash: 4998b2dfde33b5320c8e796c5e6bfd80
humanhash: jig-victor-august-charlie
File name:PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:897'488 bytes
First seen:2021-02-22 12:34:26 UTC
Last seen:2021-02-22 15:00:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 123e9c36cc1595f744449f97bcf23cbf (6 x RemcosRAT, 1 x Loki, 1 x Formbook)
ssdeep 24576:RYUkRHVFnyXv1qhqs7ANT8QNE1C5h7bmhNC:RY9b0Uhqoh0
Threatray 3'250 similar samples on MalwareBazaar
TLSH AE154EB69B4A4B12F05B143DCD0AE6FA0755BC41372B99B71ED8F7478AA2780B4E4073
Reporter JAMESWT_WT
Tags:FormBook signed

Code Signing Certificate

Organisation:Word
Issuer:Word
Algorithm:sha1WithRSA
Valid from:2021-02-20T22:44:55Z
Valid to:2039-12-31T23:59:59Z
Serial number: 3f8b1d4c656982a34435f971c9f3c301
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: d251ece1b477449c75147a689c4a4e73241a0eee3131b751446a250e1b9d040f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-02-22 11:03:48 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/5db7bfcf-cb47-4263-b6a5-57b3d599a5d9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DLAgent07
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118306/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Unauthorized injection to a recently created process
Launching a process
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:
UNKNOWN
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/614046
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: Suspicious Program Location Process Starts
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 356034 Sample: PDF.exe Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 38 www.insideoutsideyoga.com 2->38 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 8 other signatures 2->56 10 PDF.exe 1 18 2->10         started        signatures3 process4 dnsIp5 48 cdn.discordapp.com 162.159.133.233, 443, 49727 CLOUDFLARENETUS United States 10->48 34 C:\Users\Public\Librariesmrtaest.exe, PE32 10->34 dropped 36 C:\Users\Public\Librariesmrta, ASCII 10->36 dropped 76 Detected unpacking (changes PE section rights) 10->76 78 Tries to detect virtualization through RDTSC time measurements 10->78 80 Injects a PE file into a foreign processes 10->80 15 PDF.exe 10->15         started        file6 signatures7 process8 signatures9 82 Modifies the context of a thread in another process (thread injection) 15->82 84 Maps a DLL or memory area into another process 15->84 86 Sample uses process hollowing technique 15->86 88 Queues an APC in another process (thread injection) 15->88 18 explorer.exe 4 15->18 injected process10 dnsIp11 40 www.xn--o39aw5kbws.com 121.254.178.233, 49741, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 18->40 42 www.tm-ta.com 119.8.96.154, 80 HWCLOUDS-AS-APHUAWEICLOUDSHK Singapore 18->42 44 9 other IPs or domains 18->44 58 System process connects to network (likely due to code injection or exploit) 18->58 22 Emrtaest.exe 18->22         started        25 svchost.exe 12 18->25         started        28 Emrtaest.exe 18->28         started        signatures12 process13 dnsIp14 60 Multi AV Scanner detection for dropped file 22->60 62 Detected unpacking (changes PE section rights) 22->62 64 Machine Learning detection for dropped file 22->64 66 Tries to detect virtualization through RDTSC time measurements 22->66 30 Emrtaest.exe 22->30         started        46 www.tm-ta.com 25->46 68 System process connects to network (likely due to code injection or exploit) 25->68 70 Modifies the context of a thread in another process (thread injection) 25->70 72 Maps a DLL or memory area into another process 25->72 74 Injects a PE file into a foreign processes 28->74 32 Emrtaest.exe 28->32         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43974f14d79cef415355192eadf724a2a2f605d230eafaae0b5391c920971785/
Threat name:
Win32.Trojan.Gorgon
Create hunting rule
Status:
Malicious
First seen:
2021-02-22 07:11:30 UTC
File Type:
PE (Exe)
Extracted files:
45
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iolu6fgxttxucu2vdexk35zeukrpmbosgdvpvlqlkoi4siexc6cq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
149bc7bb666f2eabcf946822bd316709ddeeef787f059687415f98c71ad47783
Formbook
2bec4da3283f4d9329b155c12e5ee6f5f8943bb43d9e66c1767b877b89a19063
Formbook
2ff45850f2e31480bb0020b00786bc290a3979c3db934975e6d15155ba59b453
Formbook
45fda70b08542ae52a8228a61e317973f42b477583841e384e9817d7d2dd3709
Formbook
561562923f5bb53f6113b9a15c60cf2755437556e9e48cdc3fc3ae7ebe0171a7
Formbook
8241caa4d6c5a09290864492d19dee143f0f80074d370135c0f91bad01c16ee3
Formbook
9681746b0d72e882c0949fcbdd3005b15720d66b4a8795b9d7c8c98a59048582
Formbook
a8fe6d7fa624e8e96f71d3ff6375a012b44b51f06179feb7cef8c33fd6d38570
Formbook
b0787f51caf44390126cfb1e827d548139021e30bca2cf2e299917ea5788a8bf
Formbook
fd43374c3bef6b11ed3bd01e3830cb6c62cab1bdb3ffcf0f3c29de7151513b0a
Formbook
+ 3'240 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/210222-7dy1gv9m3e/
Behaviour
Suspicious behavior: EnumeratesProcesses
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
Adds Run key to start application
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.insideoutsideyoga.com/ujg4/
Unpacked files
SH256 hash:
0e7586027be2b00d10dcc585232de1b4fe8f23be8298dad1f3bc86475946b5c9
MD5 hash:
ee5230700e4a146fed27eab5f8d9caa6
SHA1 hash:
809225fca3c38e5cd30eb35b9b667393becfb516
Link:
https://www.unpac.me/results/063ed6aa-d9f4-4452-b91a-25c50d6ed0f4/
SH256 hash:
43974f14d79cef415355192eadf724a2a2f605d230eafaae0b5391c920971785
MD5 hash:
4998b2dfde33b5320c8e796c5e6bfd80
SHA1 hash:
03ffc4022e5cdc5c55483413a6329acd29e5e3ca
Link:
https://www.unpac.me/results/063ed6aa-d9f4-4452-b91a-25c50d6ed0f4/
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/43974f14d79cef415355192eadf724a2a2f605d230eafaae0b5391c920971785

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/118306/

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