MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01. 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: c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01
SHA3-384 hash: 60cd7f1d323a7e17321c8b7386b7f2d2de672f5cc8d20b7eaa4c28bdf69b68a78b981b6beff7c0fa55996088ed7a786b
SHA1 hash: f6f7565b74384e2d20626f74b1e06e0bea7a565e
MD5 hash: 778a66eedcc69a1285b57a2cc5e3fa82
humanhash: shade-avocado-queen-chicken
File name:778a66eedcc69a1285b57a2cc5e3fa82.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:599'552 bytes
First seen:2023-08-17 19:22:42 UTC
Last seen:2023-08-17 19:33:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:E/dXpYDl+CTA0Uk/QP1LGwPP1PQd4nwkAK52JcEdEnUf5:hvA0Uk/yGwX1PQd5kwcUh
Threatray 3'557 similar samples on MalwareBazaar
TLSH T14BD41260A1BD5F26C87987FA096190900BB57F7B65B2D34C8D91E4C769B9F800FA0F1B
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)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
272
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5aebac92125547ec3d79dac08bf20e1a990758cf2bace37672dca5adfe509aab - Copy.rtf
Verdict:
Malicious activity
Analysis date:
2023-08-17 13:46:03 UTC
Tags:
exploit cve-2017-11882 stealer
Link:
https://app.any.run/tasks/b52d9f2e-e9b1-4a36-8dd0-fc1174ca9bd2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/443348/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Restart of the analyzed sample
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01
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/519fc499-81a0-4934-be96-2f259a0ece38
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1293116
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Deletes itself after installation
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1293116 Sample: 4Y8g0J8rBt.exe Startdate: 17/08/2023 Architecture: WINDOWS Score: 100 29 www.whiskeyrockszerofox.com 2->29 31 www.uvmxy3.cfd 2->31 33 14 other IPs or domains 2->33 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 6 other signatures 2->55 10 4Y8g0J8rBt.exe 3 2->10         started        signatures3 process4 signatures5 59 Injects a PE file into a foreign processes 10->59 13 4Y8g0J8rBt.exe 10->13         started        process6 signatures7 61 Maps a DLL or memory area into another process 13->61 63 Queues an APC in another process (thread injection) 13->63 16 BXTvfyNrjgGFcGxvShsSqPI.exe 13->16 injected process8 process9 18 cmd.exe 13 16->18         started        signatures10 41 Tries to steal Mail credentials (via file / registry access) 18->41 43 Tries to harvest and steal browser information (history, passwords, etc) 18->43 45 Deletes itself after installation 18->45 47 4 other signatures 18->47 21 explorer.exe 7 1 18->21 injected 25 BXTvfyNrjgGFcGxvShsSqPI.exe 18->25 injected 27 firefox.exe 18->27         started        process11 dnsIp12 35 www.potent-tech.com 119.28.69.86, 49737, 49740, 49749 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN China 21->35 37 301.woaituqing.com 67.21.74.99, 49728, 49729, 49730 ST-BGPUS United States 21->37 39 7 other IPs or domains 21->39 57 System process connects to network (likely due to code injection or exploit) 21->57 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-17 05:33:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yv64amraly54x6dkrxdakm3xs5wgvtablkbx7wy4gd3ozdjxvmaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
120efb48724487028465fb5d25db17b9398f56bad7116e54299ab5087104e69b
Formbook
126e048eed0b55d00c200460122394c059ad7e7fda97b0d52a97d478aa7b0998
Formbook
168e72097cea76b8d996b129c02d7a1d9825f72ecb193317d5f5ab08fef5540b
Formbook
1bf9eea6de3a59ee58e13e33175ffdd66c6ba4a187b4df949593853c43784afe
Formbook
216237da181e0a4fe72486534f4fb7694641a34508dce78b3d36acbd53bd9dba
Formbook
9c4729e8b07e00f05876ed556d5c27a993a60979374b7fdafe69c0aca66a7281
Formbook
a0755b595474643bf1200cb8b3a9038f53d685b6caff8c82acf3ed344fa22da3
Formbook
a456a0fcdedef851458b225f6bae02f6ee4e9ff6e1d479376d3766497aea8ac2
Formbook
de361195aca3d3d04494a26d2023ecdc0bf09cf56f379813d19b2c256ee18df8
Formbook
eff9bbf602fab34b0fe063fb3595ef374fdeb30670db2eb04237a921f03ed47d
Formbook
+ 3'547 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230817-x3scwscf89/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
be3764dba0f665ef82851a85a36d6d9ed4b1d32e887cf6b40f329503071fe352
MD5 hash:
14b938057a703e114d551e023c5eb977
SHA1 hash:
6a4ee6be076b35db6f7f7bc12065e074b99719de
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
Parent samples :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 hash:
c626bb14f96aa5e4da875c08230bc9c97bb61c9736f3d4dc8d4a5758a8aa35dc
MD5 hash:
78dcba5d9656b33f044ba352a2a9e660
SHA1 hash:
8d28ba43dcb87cb4a987a8c7c228bf63b62e3324
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
SH256 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
SH256 hash:
e0b81525ba76effec11cf95c18269b1324f051c57272a330e7504de39b49d8a0
MD5 hash:
fc6fbdd5bbe1b622fdd597c38a63f178
SHA1 hash:
48d0155ffee7a4a558ee137995faaf3291765616
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
SH256 hash:
b26a7e88c2fc5a6dbf3e1f5d8ac59c4579b3b9047f462c5cb7ee79548fa18da9
MD5 hash:
06dc1333af7361fb9ebebe5c4dbe58e4
SHA1 hash:
1adadf881904c5370e96c0a566085cf3c83ca8d0
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
SH256 hash:
c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01
MD5 hash:
778a66eedcc69a1285b57a2cc5e3fa82
SHA1 hash:
f6f7565b74384e2d20626f74b1e06e0bea7a565e
Link:
https://www.unpac.me/results/bd349ddf-13ca-46fc-ae35-15114dd1be04/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01

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:NET
Create hunting rule
Author:malware-lu
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.

Web download

Formbook

Executable exe c57dc032205e3bcbf86a8dc6053377976c6acc015a837fdb1c30f6ec8d37ab01

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2695833/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/443348/

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