MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83
SHA3-384 hash: 4ffc672ae6b542f8e8974f4ab0f44b420d7a49749581460b330d4bd168d65c2937dc8e8d01ac45106d7fb062b00b931a
SHA1 hash: b8c864e4db81925c7e5dcc587ddee6bae7836fcd
MD5 hash: 1fd77b667eb6f47723c511bc4635706b
humanhash: triple-helium-stream-blossom
File name:PO2204-00011.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:683'008 bytes
First seen:2022-04-25 05:04:31 UTC
Last seen:2022-04-25 05:30:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:XpMUXVVMDNe/VRT2CEFFJ9RyH3R2PAMVfB74J1aDZAtUJhVhtmuCXy3MREPbI7Bk:XpMPXCnAbw8EJ14TsNB34i9M
Threatray 15'214 similar samples on MalwareBazaar
TLSH T1B4E4BE177959EA04C478BAF652105D8402A16E8FA4B2D2FA5CA437B954F33C3FE407EE
TrID 49.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
21.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.9% (.SCR) Windows screen saver (13101/52/3)
7.1% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 4c32d8d4d4d8334c (2 x Formbook, 1 x njrat)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
253
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/266222/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.32049.5345.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/62662c0573707978a845cc46/reports/6332d9b3-49e1-4dee-8c3d-1af0af645cee/overview
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.
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/982191
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 614678 Sample: PO2204-00011.exe Startdate: 25/04/2022 Architecture: WINDOWS Score: 100 45 www.huiyingmiemie.xyz 2->45 47 www.bymatu.com 2->47 49 parkingpage.namecheap.com 2->49 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 10 other signatures 2->61 11 PO2204-00011.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\mokXOzZh.exe, PE32 11->37 dropped 39 C:\Users\...\mokXOzZh.exe:Zone.Identifier, ASCII 11->39 dropped 41 C:\Users\user\AppData\Local\...\tmp85D6.tmp, XML 11->41 dropped 43 C:\Users\user\...\PO2204-00011.exe.log, ASCII 11->43 dropped 67 Uses schtasks.exe or at.exe to add and modify task schedules 11->67 69 Adds a directory exclusion to Windows Defender 11->69 71 Tries to detect virtualization through RDTSC time measurements 11->71 15 PO2204-00011.exe 11->15         started        18 powershell.exe 24 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 81 Modifies the context of a thread in another process (thread injection) 15->81 83 Maps a DLL or memory area into another process 15->83 85 Sample uses process hollowing technique 15->85 87 Queues an APC in another process (thread injection) 15->87 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 51 www.huiyingmiemie.xyz 154.197.2.146, 80 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 22->51 53 www.shengbangfc.com 38.54.187.21, 49834, 80 COGENT-174US United States 22->53 63 System process connects to network (likely due to code injection or exploit) 22->63 65 Performs DNS queries to domains with low reputation 22->65 30 cmd.exe 12 22->30         started        signatures11 process12 signatures13 73 Self deletion via cmd delete 30->73 75 Modifies the context of a thread in another process (thread injection) 30->75 77 Maps a DLL or memory area into another process 30->77 79 Tries to detect virtualization through RDTSC time measurements 30->79 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-25 02:14:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vmln6ouiqo3ajhaedx5qcdpezip7r3y76wmmi24tswbtwuxxr6bq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
08bb3c1e40fec4d0cec3b6cf4d0cc4363b5f3544358d77ba94611a812f1eac62
Formbook
28bae65cec413f6c0dcb0df2b34f0a9cb4a53ea246de0fff2baee4a98d8551d2
Formbook
33d9ff922b2b34291e7e84fee8cb11062f4e1eb56cff714fca88f8fa5b507c09
Formbook
574fa65d6f75e60274434f27f9f28f439c093ba8ba7eb8303a441a5e851d70c8
Formbook
5a4fc9ae9589145ea8718412a44417f39370dbc809b8d93a6650b1247b011b7f
Formbook
61ee0cca6d45766ecfedcfafba7f2e57d8fc2f4ee9b42bce3e7ffe5848c071f9
Formbook
8c1de309eaa9d9a48f92587f93f88304ae1aa48aee62e7ede11893f1ca61775e
Formbook
95c6926c4af01e7a782b16967a66b3c349f24a6ab2393b1a20c47e28a1ad7249
Formbook
97e3431b489d64fb200c178334d0229cea2495e7f01856ac8571e4f085636b73
Formbook
c08029bf515af0b640fb4fcdd2d0805cd88f953cbff0315f325a4869d662678f
Formbook
+ 15'204 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n4th loader rat
Link:
https://tria.ge/reports/220425-fqt8aabde2/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
80ad8e285635f8a771451e2ae9971289a692a323017d6b0661206786f6c15ad3
MD5 hash:
ed824ddce884887d1241920022ea7851
SHA1 hash:
3d0574c41d464ade3e5457842ac997468324ba7b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a9199a5b-557e-435e-b417-fa2a556a3b83/
Parent samples :
c08029bf515af0b640fb4fcdd2d0805cd88f953cbff0315f325a4869d662678f
ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83
a3eb9cb4b46ef56131c171edab5015355e63f8c2f94bc8f5bc23ed0a48ea3d7f
c844932f35e86ce71489f71dd937ffaf3081ada2ac3f0ad069f40d3d51ba09b4
SH256 hash:
f451e17ed9b19e12c1aa29a7344d36345315bbf9d512838d9478b229ef3e339a
MD5 hash:
debd02545bd1254b4df71531f08e97cd
SHA1 hash:
e3437f49fafbc26fe002ad88193446f8714c71e4
Link:
https://www.unpac.me/results/a9199a5b-557e-435e-b417-fa2a556a3b83/
SH256 hash:
0646f2eede3c8938ea37135230a63eaa8343afe90fb9941e0c2d9c670c516d3b
MD5 hash:
cfbe8d93b1462913225fffa5a7603b9c
SHA1 hash:
fc2aa1f63dbd004c72d5bd48e35ca1cea4398643
Link:
https://www.unpac.me/results/a9199a5b-557e-435e-b417-fa2a556a3b83/
SH256 hash:
09cd3bc420c8982190990a9673b58c3ab01e933dff0881f1e521d3316f1b9a6b
MD5 hash:
6933707e111286a128ad0f7fa298153f
SHA1 hash:
d1121c8bed634e9684727e8c0aad3f597b0749ad
Link:
https://www.unpac.me/results/a9199a5b-557e-435e-b417-fa2a556a3b83/
SH256 hash:
ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83
MD5 hash:
1fd77b667eb6f47723c511bc4635706b
SHA1 hash:
b8c864e4db81925c7e5dcc587ddee6bae7836fcd
Link:
https://www.unpac.me/results/a9199a5b-557e-435e-b417-fa2a556a3b83/
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/ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83

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:pdb2
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.

Cape
Cape
https://www.capesandbox.com/analysis/266222/

Comments