MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e. 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 1 File information Comments
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SHA256 hash: ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e
SHA3-384 hash: c4557c5f4862e540da4e0ffbaf7cf483060a909f9b9f67faee3634c751260d2a3163eeb3a11ac67018748fd30751f225
SHA1 hash: 716ad70dc07a6b7d3c46209de8627bf3f3535361
MD5 hash: aefc9702ff5d6d9064ec8e5ea82e4870
humanhash: cat-maine-potato-uranus
File name:SKM-973116391_PDF.pif
Download: download sample
Signature Formbook
Create hunting rule
File size:304'451 bytes
First seen:2022-01-20 11:06:26 UTC
Last seen:2022-01-22 23:22:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owhC2vv8n3uVdvsbCsO++T0c+i/ibsqolR6ckj4sv2kfHhEZqh:Q2s3L7+TGxbsqoX6ckj4JMh
TLSH T1CF54126B6AC5C817C22712780E369234577AF3233B13086B87D85F677A513D78A9D2D3
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
221
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/221065/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe expand.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/61e9426f0f8c757253d03f99/reports/a49b5486-98b4-439a-b178-b12fdeb97aae/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/89d0cba6-0f7d-4fa0-8c9b-d7209e1e7481
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/924259
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 556734 Sample: SKM-973116391_PDF.pif Startdate: 20/01/2022 Architecture: WINDOWS Score: 100 31 www.lakebalboahalf.com 2->31 33 www.gestion-kayfra.com 2->33 35 4 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 11 SKM-973116391_PDF.exe 19 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\qhkurpf.dll, PE32 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 SKM-973116391_PDF.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 hilldaley.com 15.197.142.173, 49780, 80 TANDEMUS United States 18->37 39 stanfordgrouploscabos.com 151.106.98.40, 49846, 80 PLUSSERVER-ASN1DE Germany 18->39 41 15 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 msdt.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e/
Threat name:
Win32.Trojan.Tnega
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Status:
Malicious
First seen:
2022-01-19 23:11:48 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=56mg7knmkbbs2h6bx2havtuhfs7srt2r3ft5nu2wi6vd655m7fha._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:uar3 loader rat
Link:
https://tria.ge/reports/220120-m71jyshfg2/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Unpacked files
SH256 hash:
c88591890798e21cea03becbf1c14ee169b34981a0a9d095f3ff86ccd10e4ebe
MD5 hash:
58637ba6b67aa847105e312bac8a0695
SHA1 hash:
e3a1f43dda6cf42f23acf4cd4f1ad944f3c591ce
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/12e16a48-be9c-4f2e-9b50-fa168592ad5b/
Parent samples :
32202111654172f16eab4a33849af61e651680218d44e657b719b56789976561
ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e
44b17de7c324ff60a195215bf1a73eb41febf731f86699848e68815db5978387
2838dffa365f3f4d1b7b4c766cea66dc2be629fe7991c112894a40acae72e601
d6fce7f4f6a8c7c7ec013bd177f42ab0a9ef8d8ce6f505245ea09e41d33201e0
7aa0e9cbf1f38bc13f59033198c94dc657236f15cda0359881edec87394defad
fb45dfc26c736d67a8c409194b6f0e503a4519be42dfd1eaa7b7efb026d7c512
2c9c53afeadf78570137cbee063eb4446a2f2086d516b348199ed4500434c126
de84eba1dbe2c9b339c91d9f90180478b3e84a190f566d3c667d6490caa92601
e9fe0fe5cd5d59f973f1ea299c3476fbbd9e6a95f44509854286f584a313837c
6cd98e5cee60f33ca33f4e49d5f230feb6152510230abd25f8b5beab47e2afec
db097eebc2cb1af575eeb0e7278d466276ddd626cfa0bb5f0b77741679870959
SH256 hash:
c553442735f0cf507ae1db7e5beb9dfd91e6e26759ba4b064cb284a684ed8aa9
MD5 hash:
4b585786f7c4954b6ec5fa47486c3e01
SHA1 hash:
def671ab058b9db6bb436c57be2ed88b8f80580c
Link:
https://www.unpac.me/results/12e16a48-be9c-4f2e-9b50-fa168592ad5b/
SH256 hash:
ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e
MD5 hash:
aefc9702ff5d6d9064ec8e5ea82e4870
SHA1 hash:
716ad70dc07a6b7d3c46209de8627bf3f3535361
Link:
https://www.unpac.me/results/12e16a48-be9c-4f2e-9b50-fa168592ad5b/
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/ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

Formbook

Executable exe ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221065/

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