MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c. 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 6 File information Comments
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SHA256 hash: cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c
SHA3-384 hash: 9607d4b87cfcab82745f39559ac212fb008ff658db0e7202a80b40d6e4b31a1cedf4e16ff5d93252cbca2f56563ac132
SHA1 hash: 4af3570906f7691af32a423017780b24d31fba57
MD5 hash: ca266adea4aafb311d97bed9eec90ac4
humanhash: pasta-pasta-lake-speaker
File name:Purchase Order.exe
Download: download sample
Signature Formbook
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File size:838'656 bytes
First seen:2022-09-28 03:19:47 UTC
Last seen:2022-09-30 14:42:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ZUxkIeZCndgpQuzC8eGrhhHujHVVfgeAGcz/pIADqjJ5nF0+9MK:ZHZPebrYhK1VfgGczBSjr5e
TLSH T16005291429EB526CF4BA5BBA6FC8B8FA4C5BFE71252960F621A173068733E05CCD1135
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/314182/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.51847.31363.30010.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/6333bd62d089a0c15dd28111/reports/71a9edb0-0ceb-4a2b-8f3f-fe3df1d19c13/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/3e1c3db9-d8ac-41ff-8de6-648522b4b41c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1078852
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
Deletes itself after installation
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 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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 711395 Sample: Purchase Order.exe Startdate: 28/09/2022 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 6 other signatures 2->40 8 Purchase Order.exe 3 2->8         started        process3 file4 24 C:\Users\user\...\Purchase Order.exe.log, ASCII 8->24 dropped 50 Injects a PE file into a foreign processes 8->50 12 Purchase Order.exe 8->12         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 12->52 54 Maps a DLL or memory area into another process 12->54 56 Sample uses process hollowing technique 12->56 58 Queues an APC in another process (thread injection) 12->58 15 explorer.exe 12->15 injected process8 dnsIp9 26 inhomeyoga.com 195.110.124.133, 49704, 49705, 49706 REGISTER-ASIT Italy 15->26 28 www.sandiancin.info 199.192.31.144, 49707, 49708, 49709 NAMECHEAP-NETUS United States 15->28 30 4 other IPs or domains 15->30 32 System process connects to network (likely due to code injection or exploit) 15->32 19 svchost.exe 13 15->19         started        22 autochk.exe 15->22         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 19->42 44 Tries to harvest and steal browser information (history, passwords, etc) 19->44 46 Deletes itself after installation 19->46 48 2 other signatures 19->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-09-27 08:05:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z3rzyyrsowflhjh65bpaznr4y4hher7cv7eoklsebtvuaopo5ega._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:gski rat spyware stealer trojan
Link:
https://tria.ge/reports/220928-dvra3sehh2/
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f00d6c12-2828-471a-a46e-e57bf3b8e09b
Unpacked files
SH256 hash:
5ac02f9abe3b1262391f7afd9f98bf12d6563ee4573541543325efabdb8a4ad9
MD5 hash:
40d864607e4e2320b5d9ba501ce55d76
SHA1 hash:
539fe585d996159e4042c5927438a8aa871135a3
Detections:
XLoader
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/8bac5647-ad70-466e-8998-0035a3922310/
Parent samples :
26ee13ceb4c1b409a14de72d0cf8e1f3b0cb4d92a416b8618cff800df7762fb1
e7ec471b7564c94d45aa5524f4205cfdc38f60965d5052144e667a643c543895
a0b19468a7896874e57b014b28e8d3abd1707e2b52a8ef1bf516d4c1a76a7b42
e963c5f4f3d85c3b4ca97d11584940a9a499e7fb89348a8cb4f54ee49ec375a4
cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c
96c2f6719306e60120f214c54417de3819cb61d1a6b80bbcd177be659beeeacb
SH256 hash:
264e396c8f72224deb3cd6aa6337f75fd5264307b7a0f9bf67176885c0ca307e
MD5 hash:
eb2e990cfdca07815bfb34e63d437494
SHA1 hash:
32b4f5f78b6d168c20573563e067a835d46955b8
Link:
https://www.unpac.me/results/8bac5647-ad70-466e-8998-0035a3922310/
SH256 hash:
f0635ec19e6bb81faf5f126727dc17b2d021e4c127c6d5b2213cf22253ad9d21
MD5 hash:
ddb10ebef245cca86ab114773b461712
SHA1 hash:
fba4593f2be65f4031401c4ffadc04c2f7f3f6da
Link:
https://www.unpac.me/results/8bac5647-ad70-466e-8998-0035a3922310/
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
Link:
https://www.unpac.me/results/8bac5647-ad70-466e-8998-0035a3922310/
SH256 hash:
cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c
MD5 hash:
ca266adea4aafb311d97bed9eec90ac4
SHA1 hash:
4af3570906f7691af32a423017780b24d31fba57
Link:
https://www.unpac.me/results/8bac5647-ad70-466e-8998-0035a3922310/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest7
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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 12105f375305f03d5af6f358ee11910c1b5f61b678b53fff254e7aee4f766970

Formbook

Executable exe cee39c6232758ab3a4fee85e0cb63cc70e7247e2afc8e52e440ceb4039eee90c

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/314182/
  
Dropped by
SHA256 12105f375305f03d5af6f358ee11910c1b5f61b678b53fff254e7aee4f766970
  
Dropped by
MD5 7a8feaa39d150a556185b1db88dc16e9

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