MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f. 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 6 File information Comments
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SHA256 hash: c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f
SHA3-384 hash: 6dcd92e4ecb3e7e34f533ef2c3f6ff677e73df3c973301db9b92034101e2580fedcb5d62778b90d1ca88775cc9511bc6
SHA1 hash: f8e1d7de0aa66ac4a38d5b63d5e125d869ffe7a4
MD5 hash: 79bfe4cd6855c69c57c3b6b3a2ad898f
humanhash: cardinal-diet-july-spring
File name:purchase order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:738'304 bytes
First seen:2024-12-06 08:23:11 UTC
Last seen:2025-01-10 14:34:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:qPG+bXCyRhdsE2DqaE9g1YEsWzKPY0oPaGZNej8P/2okxa/Ot8Mf9juewH:2yyPsLDqaE9g1bjePY0oS5k2JxFy4U
Threatray 5 similar samples on MalwareBazaar
TLSH T19AF412696692D50ACA8127B41EB0F2BC77FC4E9EA901D3035FDDADEBBC3AD145C88141
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
389
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
purchase order2.exe
Verdict:
Malicious activity
Analysis date:
2024-12-06 07:49:37 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/324692d1-c162-457f-969b-5c504cca1ecd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.4827.21704.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6752b4a319fba9940b496cb6
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6752b4a2c14b32cf1c94b3a6/reports/874a1cf8-861a-4569-b91a-1fed146c70ca/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f
Malware family:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4ea0f5ab-3d7e-4ab8-ac6a-cd6aa2c4f060
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1569753
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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 dnsIp2 2 Behavior Graph ID: 1569753 Sample: purchase order.exe Startdate: 06/12/2024 Architecture: WINDOWS Score: 100 31 www.aktmarket.xyz 2->31 33 www.golivenow.live 2->33 35 10 other IPs or domains 2->35 45 Suricata IDS alerts for network traffic 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected FormBook 2->49 53 5 other signatures 2->53 10 purchase order.exe 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 31->51 process4 file5 29 C:\Users\user\...\purchase order.exe.log, ASCII 10->29 dropped 65 Injects a PE file into a foreign processes 10->65 14 purchase order.exe 10->14         started        signatures6 process7 signatures8 67 Maps a DLL or memory area into another process 14->67 17 olMGHvjsNFhNU.exe 14->17 injected process9 signatures10 43 Found direct / indirect Syscall (likely to bypass EDR) 17->43 20 cacls.exe 13 17->20         started        process11 signatures12 55 Tries to steal Mail credentials (via file / registry access) 20->55 57 Tries to harvest and steal browser information (history, passwords, etc) 20->57 59 Modifies the context of a thread in another process (thread injection) 20->59 61 3 other signatures 20->61 23 olMGHvjsNFhNU.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 1hong.pels5zqo.shop 129.226.153.85, 49983, 49989, 49999 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN Singapore 23->37 39 www.christinascuties.net 74.208.236.156, 49793, 80 ONEANDONE-ASBrauerstrasse48DE United States 23->39 41 5 other IPs or domains 23->41 63 Found direct / indirect Syscall (likely to bypass EDR) 23->63 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-12-06 03:10:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zacawf2bsexa4dwpa4vcbce55j6iqc3n7ioq2flzzglktf3zvqpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
51f793789b534af84e377bfa1d9686038108885b89f05e3966e34ec31027f4e4
Formbook
a745c365d4721bd4ca52cc7caa356a3da3e80406b8f3cc9df2893550553dcaa9
Formbook
c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241206-kapebaykd1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9ba488e2-a988-45c2-bbdc-c406bf5abf24
Unpacked files
SH256 hash:
ab9ed7683a0ff3dd0759fe7612b4e3fe82f09f9e70aace8dab4a0222d9346589
MD5 hash:
88816d080fb9d2d87409a5499a3f7943
SHA1 hash:
2f3defefe558e2425b3ffe5ce273fa23ca82cfa3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e29d6f50-a5ca-4b14-a8d9-a17c5800b652/
SH256 hash:
48c1416f6b6a61e1ee051b1987025186fe016a1d5c75cb6d9e17df41bb420271
MD5 hash:
53ca009966e183fb017ed0ce402cb19d
SHA1 hash:
b4ef2c1fde4997ea0c8a3f0492605680df2a6b21
Link:
https://www.unpac.me/results/e29d6f50-a5ca-4b14-a8d9-a17c5800b652/
SH256 hash:
19d3254273ec0ff838f3054c3a1465751ba2db85d80b8a1bfab706bc5b665559
MD5 hash:
34502f41dbbfa82076a0880d2638a59d
SHA1 hash:
9fc1d6d1e1eb03cfcce2805100fa1bbadb8a1afe
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e29d6f50-a5ca-4b14-a8d9-a17c5800b652/
SH256 hash:
acf09c80699691d3a6a8d52577d06a7054c1bda1953a55527251e92e15ba037f
MD5 hash:
69473b5123488cff4aae599aa14eb3a4
SHA1 hash:
1d3562fd2fb55582cb97441b9f01065dd80373fc
Link:
https://www.unpac.me/results/e29d6f50-a5ca-4b14-a8d9-a17c5800b652/
SH256 hash:
c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f
MD5 hash:
79bfe4cd6855c69c57c3b6b3a2ad898f
SHA1 hash:
f8e1d7de0aa66ac4a38d5b63d5e125d869ffe7a4
Link:
https://www.unpac.me/results/e29d6f50-a5ca-4b14-a8d9-a17c5800b652/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8040b174191/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/c8040b1741912e0e0ecf072a20889dea7c880b6dfa1d0d1579c996a99779ac1f

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:NETexecutableMicrosoft
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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