MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
SHA3-384 hash: 0a16d3ef16bb0dfb347653bc35f84eacca504b6c9c04e838d289a555cddc6cbafbe807886dce3443b033df82e5f618e2
SHA1 hash: d1720adf6fcb8ce441122827b575a99000e8190b
MD5 hash: 09917302bc0ecc0d3850cadcbd43e6c2
humanhash: seven-oscar-seventeen-montana
File name:Contract Agreement 200723.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:698'368 bytes
First seen:2023-07-21 06:00:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:GWc/bUYIsYolnqsPyYD5PqwZ24s2xVLbXRJa0lTe2j3hD:NiXrYo8xwZ24s2x5a0P
Threatray 3'332 similar samples on MalwareBazaar
TLSH T143E42302313A5973D4A6AEF26425A25027B4A5153297C3DDDCB225C72DE93833ED2FCB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 8e336969f071338e (7 x AgentTesla, 3 x SnakeKeylogger, 2 x Formbook)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
280
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Contract Agreement 200723.exe
Verdict:
Malicious activity
Analysis date:
2023-07-21 06:01:43 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/5e898969-ebfa-457e-beb3-aad516222c42

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/427302/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.9598.12768.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/90c8353c-ebe7-4821-9657-33e2558b5873
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1277204
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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)
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
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 signatures2 2 Behavior Graph ID: 1277204 Sample: Contract_Agreement_200723.exe Startdate: 21/07/2023 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 5 other signatures 2->52 10 Contract_Agreement_200723.exe 4 2->10         started        process3 file4 38 C:\...\Contract_Agreement_200723.exe.log, ASCII 10->38 dropped 56 Adds a directory exclusion to Windows Defender 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 Contract_Agreement_200723.exe 10->14         started        17 powershell.exe 21 10->17         started        19 Contract_Agreement_200723.exe 10->19         started        21 Contract_Agreement_200723.exe 10->21         started        signatures5 process6 signatures7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 Queues an APC in another process (thread injection) 14->74 23 explorer.exe 2 1 14->23 injected 27 conhost.exe 17->27         started        process8 dnsIp9 40 www.cdicontrols.com 23->40 42 zhs.zohosites.com 136.143.186.12, 49708, 80 ZOHO-ASUS United States 23->42 44 www.ownlegalhelp.com 35.233.138.132, 49707, 80 GOOGLEUS United States 23->44 54 System process connects to network (likely due to code injection or exploit) 23->54 29 cscript.exe 23->29         started        32 autochk.exe 23->32         started        signatures10 process11 signatures12 62 Modifies the context of a thread in another process (thread injection) 29->62 64 Maps a DLL or memory area into another process 29->64 66 Tries to detect virtualization through RDTSC time measurements 29->66 34 cmd.exe 1 29->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-20 20:46:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=djadc33mlmxn6gm3f2u5lmamysxfkr5ctnvkbdfk3vpnkoqaouqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
44b4eef8a260669a21c64f95af4c5ad884b77fc118be9ade37dad2b908a37bee
Formbook
61894dd6d947ab1237c08e4f020e6462fdc7a96903c7cf27523d4e21304c1612
Formbook
62b09bf1931ef9545b10b0bae3eb45a9896fec6add45690ddf95074378e71528
Formbook
830b93cdc24c1d75ee7ba0afcaddb58690f9d3ff96ded60ea5657768b188d301
Formbook
9d31c9cc465643be87d49f2b8be2a4500e8f5ab048e6327f407942fd8f02da53
Formbook
b9cecf45cfc96014113cba345c3f917d598fb372f7b86e23d36f3ff3851d504a
Formbook
bfde4e4d95b159f2567c39229e702fc4bba9c53dbd579855ce487794a6759aa0
Formbook
c4079f3f904aaaeda007ba7ce93f24d8a47eb749be233eaf87766e12fcada032
Formbook
cc1e18df25ea2f4e3a97b78ceb434ba61318eae9ee868d62bb1b3b8e9dbf2c7c
Formbook
fd36434871eb55ee3d9f78ee0fd63f26c915f8d5a7d3848ef6ffddcac75893cc
Formbook
+ 3'322 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230721-gqb75sch6t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
57d06b57605109335f41e7529a275a14155c39bd74c54049dfcdfa8a5756c09a
MD5 hash:
612b19e1ed04b4a8f442939324963a63
SHA1 hash:
5f12391109b022d1017312892ff95a7b751afa37
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8fa16dac-5f69-49cb-9222-f9392ef253e6/
Parent samples :
cc1e18df25ea2f4e3a97b78ceb434ba61318eae9ee868d62bb1b3b8e9dbf2c7c
61894dd6d947ab1237c08e4f020e6462fdc7a96903c7cf27523d4e21304c1612
44b4eef8a260669a21c64f95af4c5ad884b77fc118be9ade37dad2b908a37bee
c4079f3f904aaaeda007ba7ce93f24d8a47eb749be233eaf87766e12fcada032
1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
276026d460a163a82f31f1d1b1283b13f37170ab543357585952c311606d6a7f
3075ce1d8754fd33aba3041411c6f1465abdb5c49495b18511c656589db79ba9
7a123e291c6c3bca48da92da78abd1157469dd5885f7af234e9114bcc5c8f061
ce4adf5f77ad3bf554ee6727abfe3c82e49ac5097e4e8d50ba2faba0d05b9c1d
a318197c6b7d13969ec28187327e1005ac7d39f969ef27b81f7967870e896378
5e356ba0663601a704ff745bf4e38b9a8ee7ececcd5443da641d46c30a04de07
5f4316e6d654f612b1aa557b15eae6502979697bcd4cdc101b49c2297a6dca14
91407535cc5852ecae7889b9f034920694c733c9e47f89d08a470e32b9d31e13
091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe
21696a3d60cb627bb86b4e08f32f1ae08e348ff3b4e99ad15c85febb1caca754
99160f7ca07e18bc3a131520825ab4ce8d2f4c57b63bffc89d8e18d5a7fa25ce
ae5f1fa9855fd6e4511a674f0a0465df7960a757409a0d176f50b10fd14925ad
02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
ce56ba6e7d6693cf8b2110b6ce1789f9a38669af8e17c30ff83e9fec9372c372
bc1c8cb700d5be15c306441325d0390344f846c226d720647d9f8d8e37f458db
3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
SH256 hash:
b785087ccd59793f5e517dbcbe00c9e4e6bdc8be401131d8287ce56d48906069
MD5 hash:
ef0ae7d81a029aed902d75f59cfd39dc
SHA1 hash:
ddb08ee4c912255dbfa07e4f81660b2f40924972
Link:
https://www.unpac.me/results/8fa16dac-5f69-49cb-9222-f9392ef253e6/
SH256 hash:
356243c5ce8ed23346b8bbf65581b914b85de42c235f44f4126ca19045808b87
MD5 hash:
d958f678dd0111c32bd4c9fe545a994a
SHA1 hash:
c852fba42975014e32e3e0a18b3170e33ba557c6
Link:
https://www.unpac.me/results/8fa16dac-5f69-49cb-9222-f9392ef253e6/
SH256 hash:
53f2ad060cf771aa4f197df5789cee95959480c244a0b392bb450c8ce7311d77
MD5 hash:
37e82d3e2864e27b34f5fbacaea759c3
SHA1 hash:
a87024a466e052bff09a170bb8c6f374f6c84c32
Link:
https://www.unpac.me/results/8fa16dac-5f69-49cb-9222-f9392ef253e6/
SH256 hash:
1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
MD5 hash:
09917302bc0ecc0d3850cadcbd43e6c2
SHA1 hash:
d1720adf6fcb8ce441122827b575a99000e8190b
Link:
https://www.unpac.me/results/8fa16dac-5f69-49cb-9222-f9392ef253e6/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1a40316f6c5b/report/overview.html
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/1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521

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: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.

Malspam

Formbook

rar c242e291744d20067e5acfdce430e0ca70fb066312183e5544c69f39dfbc2161

Formbook

Executable exe 1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c242e291744d20067e5acfdce430e0ca70fb066312183e5544c69f39dfbc2161
Cape
Cape
https://www.capesandbox.com/analysis/427302/
  
Dropped by
MD5 8de5b6f717051d10aa4949854b42c7c9

Comments