MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
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SHA256 hash: 181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956
SHA3-384 hash: 7f978d3c64228caf5988466a4ee1db6586a9659519a38694bc28a1dee81e2d6483ce7413e0d0b95c5c05633b288a9f35
SHA1 hash: b0e06ff555feea21ee353ebb002496f5a8671c2f
MD5 hash: e77f444a6c3be2876e83bac4eda590f6
humanhash: zebra-oregon-mango-saturn
File name:ĐƠN HÀNG MỚI ĐỂ MUA,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:482'304 bytes
First seen:2022-05-09 04:31:37 UTC
Last seen:2022-05-16 09:17:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:qSawujxzbQawPoQtbqinqXh4ZuHjVih8lWACcbMYvQ4pf:ZujhuPLd1s4ZuDwhZTcAWQi
Threatray 15'251 similar samples on MalwareBazaar
TLSH T176A44E2C7B0E0AF6FC1F9130894D0A58FFA25B436240B9975BDB15FA8B4F1665E848DC
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e884030dcedeb4e8 (52 x AgentTesla, 20 x Loki, 6 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ĐƠN HÀNG MỚI ĐỂ MUA,pdf.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-09 04:32:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b115e42b-9ec8-444c-ab78-335dd1818714

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.6285.2420.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62789943d4bfd83491c2fe9e/reports/4bae117d-4721-4fda-9743-59391380ac94/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0ea85e5b-0361-4d82-beec-2326abdd251e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/989936
Signature
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
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
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 622432 Sample: #U0110#U01a0N H#U00c0NG M#U... Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 34 www.kristophergem.com 2->34 36 www.cleanerguard.com 2->36 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 8 other signatures 2->46 11 #U0110#U01a0N H#U00c0NG M#U1edaI #U0110#U1ec2 MUA,pdf.exe 2 2->11         started        signatures3 process4 signatures5 56 Injects a PE file into a foreign processes 11->56 14 #U0110#U01a0N H#U00c0NG M#U1edaI #U0110#U1ec2 MUA,pdf.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 28 larosajaya.com 194.233.74.163, 49764, 80 NEXINTO-DE Germany 17->28 30 www.tiangongjiuba.com 64.190.63.111, 49760, 80 NBS11696US United States 17->30 32 4 other IPs or domains 17->32 38 System process connects to network (likely due to code injection or exploit) 17->38 21 help.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 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/181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-05-08 23:20:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
85
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=danthrglu76jvljffa7nl7hb6fy7r63ev4kzdp7fyobiljyjdfla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1aa89074af39244a69ae04905a4f959cb59d567abbbb7ab76407c2fa34a8f59b
Formbook
3128fb689450869d75e077907887d9b27183bf7eb64e5a87989a86c3e227f43c
Formbook
3f0b6a2e50e39420c7b91acb35c08bb088c1ccaaa889491559a572dc481bf489
Formbook
67435ee3c6fd3d272c004256f34020df37fb93fd33c18720053b9d2c1bb19b67
Formbook
75362f20dab8d57db3ade6427e647b0bc01d8345ccfa9781d5778877f04f7fb5
Formbook
898b47cb2e4d16a7325de16aae14c3c66894467ece923e706c186ee9ab75799b
Formbook
8e2fa281cc72512de1fc53eb27a9c04a524ce87c3cdf5932931ea3dc463a459a
Formbook
97e3431b489d64fb200c178334d0229cea2495e7f01856ac8571e4f085636b73
Formbook
9c6a6119bc7008246685cb9960fe21969a8bfbbea6659e6e0afa329358c60a50
Formbook
da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
Formbook
+ 15'241 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/220509-e5ynksfbgl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
4c18cf4c183cbdf3e56a6ff066006412afa4e3af052bda02f025e1c8437dc616
MD5 hash:
d7c3ab07a464bc75337aae824f5292f0
SHA1 hash:
4c8f3737b109f8cfda501afcfa61492d4e58f639
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d862eed8-77bf-40ef-adb5-8d1d0844a18a/
Parent samples :
181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956
b67c56bafb316958f7f38463825bbc1daf462fe91a871cd37bdabdfd3c1630b5
4ff209aea9caf232f64a0a1670504bc6f37d079fa66dbe303439a93e00c3cdc6
ad958c67c1d8cc2dce3c9b7e3456f48cbff851107be42a7835a05d6e2f99faed
SH256 hash:
181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956
MD5 hash:
e77f444a6c3be2876e83bac4eda590f6
SHA1 hash:
b0e06ff555feea21ee353ebb002496f5a8671c2f
Link:
https://www.unpac.me/results/d862eed8-77bf-40ef-adb5-8d1d0844a18a/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/181b33c4cba7/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/181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956

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_EXE_Packed_Babel
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Babel
Rule name:INDICATOR_EXE_Packed_Dotfuscator
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_dotNetProtector
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with dotNetProtector
Rule name:INDICATOR_EXE_Packed_Goliath
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Goliath
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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

Executable exe 181b33c4cba7fc9aad25283ed5fce1f171f8fb64af1591bfe5c38285a7091956

(this sample)

  
Delivery method
Distributed via e-mail attachment

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