MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437
SHA3-384 hash: cda966b6d85fe3e3e256f50e5f67c7ae16e66ae258282f84286c0938d485d1c2caf4c20d5419966650fb2f0092c26651
SHA1 hash: b5cdfaba7d6a07225e2081dc4e6fe5265580ab1d
MD5 hash: f976846b1a85f117ff078d9662931c48
humanhash: two-vegan-eleven-table
File name:00002337526082021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'028'608 bytes
First seen:2021-08-27 04:48:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:Dx0lQLjOZdIt7FDaoGR9gLlpNND6PQLxNcE9bwbwUX:lzLjOjG71aog9gGPQLL39Eb
Threatray 8'630 similar samples on MalwareBazaar
TLSH T19C25B33C98FD2927C066CA76CBF4D827B004DAAF3226AD6554D757264353B8330D7A2E
dhash icon d4b0aa8b8bae9edc (7 x Formbook, 7 x Loki, 5 x AgentTesla)
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00002337526082021.exe
Verdict:
Malicious activity
Analysis date:
2021-08-27 04:50:45 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/71e93467-8696-43d8-947a-f24bf7457ce2

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/182793/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1011.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
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/dcfe934e-7268-42e0-a04a-261fe873ec31
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/840168
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 472599 Sample: 00002337526082021.exe Startdate: 27/08/2021 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 10 other signatures 2->40 10 00002337526082021.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\00002337526082021.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 14 00002337526082021.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.peggeorge.com 156.241.53.33, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 17->30 32 www.nshahwelfare.com 209.99.40.222, 49685, 80 CONFLUENCE-NETWORK-INCVG United States 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 svchost.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-26 08:23:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 46 (47.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qnsxtstjvnvbt5n33jl2w42kxnyv4dd5qjc24cu4wdq3gg366q3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
006dac8da13a28a8c98c6ec8ef112ee55544e0c4676cd2ffb393cb3cd66ebe15
Formbook
42c87021e56190f67716d25a66a6542bd352a66c6c352d74c60af681a187d336
Formbook
468008f5f4996c03b06d6e74a95469acee7a352f8d6bb5e718d86707da7c7c0a
Formbook
8d1770889689f693a9029f4f36a590297a38ef96cf606fa0b9cfd6a981b547d0
Formbook
bd344e9b926eee15597f199bc4d8a8b368a881dd572ed2d8a57a1200c767b0fc
Formbook
c991bf983458f62d5c6fe6dd695b5d7e13a07a35228cd0b677afd6b6da6a5e1a
Formbook
f37a8771594f5f11d6ce79551120f5d5c74ed90ae6372b98724864f07023cc34
Formbook
f658ac4fbbbd6c505cba225df9a6d177ba3de7d4a12a034df4ef17ae288cf069
Formbook
+ 8'620 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gz92 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210827-tdccxqa9wa/
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
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.peggeorge.com/gz92/
Unpacked files
SH256 hash:
dd4970a99732c793b24634ae483f1267635b96973593fc8dc357163321116989
MD5 hash:
0a03e6f45b3daf3f2dee240a33df132c
SHA1 hash:
e4a377181e9dbed35cf9e52c80b97c4b7bb3c612
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1cf0e261-5781-40d6-bd6a-a30e177d325f/
Parent samples :
f37a8771594f5f11d6ce79551120f5d5c74ed90ae6372b98724864f07023cc34
ecacac4e9f514e780ff7124b6fdd97251dcec9947d5815166b2b57d2a41ddf0e
006dac8da13a28a8c98c6ec8ef112ee55544e0c4676cd2ffb393cb3cd66ebe15
d9993a3a31c12b8f8c15f571680a14fb426e28ecd130430a93e3b3cd34563ac0
42c87021e56190f67716d25a66a6542bd352a66c6c352d74c60af681a187d336
537bcb10c903cef3b3ce38482dd1cde1f5723e8b1b928fcf28d1ba6773995b37
bd344e9b926eee15597f199bc4d8a8b368a881dd572ed2d8a57a1200c767b0fc
9e03f772f926c5875d716ee78ba7e6477578a78f63880395b32565bcc09251f3
8d1770889689f693a9029f4f36a590297a38ef96cf606fa0b9cfd6a981b547d0
501242ffaabd951fbd62a6b12cfe8955915f65acc7d6c99effd41366054ccdca
c991bf983458f62d5c6fe6dd695b5d7e13a07a35228cd0b677afd6b6da6a5e1a
f5c01bcb12e33b32123e1345f1320bc5c4137cb26df006a6ec8a508fdaed4016
8d6843a7f3cf4ffef14d352860728eba74509878e32a29fb52fa398218a68f57
f658ac4fbbbd6c505cba225df9a6d177ba3de7d4a12a034df4ef17ae288cf069
468008f5f4996c03b06d6e74a95469acee7a352f8d6bb5e718d86707da7c7c0a
836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437
475032f04ff405e24ecc5e2a93fb9c0c5fc037cc59e06b1772a8e60bc2dcadd1
cb63132b863557beac43df88e49f48fad74a31758a8a95f34ea14c6e00c9b843
b7645d8903647226e9271ca3bbad5a8bd73c622c0de9b9305f97d0fc65904134
7804b61e9db003a8c658d4288da507be6a478942229af9b4f0753dec75184b86
f9dc7de32eb824444dce368b02ff4f6648fc7d01059a04b8a3d2ce8092f1c0ce
4c5fd4ed6d7eda044f08d5369dd3ac130ae1e7d2f8415a77ebbc8010e2fe7c11
a56e9e3fc6d7b412b1e9cf5dff739358849779b3c80df268ade3d9da79bd5da5
19d1e63f8c47b32beeef9bf383b925f6414187330a48837c182a5770f67914d2
1f4ffbd0d8cf6b36bfde2890ad718d5c9178115e0e7b1f303b561475091e06e7
SH256 hash:
3f8ee26544a0725e8acd13fe0f1db1db9e27c0873278d9dc463c3398647ec22a
MD5 hash:
f242cf63fc9bb93b699f40d62163cec9
SHA1 hash:
fea19185bdb695001848dec899bca735f35fbe59
Link:
https://www.unpac.me/results/1cf0e261-5781-40d6-bd6a-a30e177d325f/
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/1cf0e261-5781-40d6-bd6a-a30e177d325f/
SH256 hash:
836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437
MD5 hash:
f976846b1a85f117ff078d9662931c48
SHA1 hash:
b5cdfaba7d6a07225e2081dc4e6fe5265580ab1d
Link:
https://www.unpac.me/results/1cf0e261-5781-40d6-bd6a-a30e177d325f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/836579ca69ab/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/836579ca69ab6a19f5bbda57ab734abb715e0c7d8245ae0a9cb0e1b31b7ef437

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_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

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/182793/

Comments