946057beb67c92c48db391eff41cf0cfea0c82de6d3ddd37a2f27055ef5eb6c7

General

Target

f_079a1e.exe
Size

1.7MB
MD5

2a7b3453cc8347fbceb1ecaa65ad4b27
SHA1

461f00672a2da8a8a41d4cf29f270c6db4480065
SHA256

636e6dbeb37bd6b2cf5450fb4aa5d17c6f0f999c8d2629605083c4a60ffe1787
SHA512

f1f0181a41864f2da87f1aaaacf28902b6135a2fc3150f35c6df2eb88c70753b35076a63dc7d10ce45bdd0253713facabc24e634e53cc39bcd164336ef901287
SSDEEP

24576:M7FUDowAyrTVE3U5F/iOW7KVrJf7GrzKyhMrcShl8sQ7TTJAZGajJWV:MBuZrEUlWWV9f7GayhMAShlC7T1AZGS

Score

4^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

f_079a1e.tmp

pid process

2432 f_079a1e.tmp
Loads dropped DLL 1 IoCs

Processes:

f_079a1e.exe

pid process

1688 f_079a1e.exe

pid	process
2432	f_079a1e.tmp

pid	process
1688	f_079a1e.exe

Modifies system certificate store 2 TTPs 4 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

f_079a1e.tmp

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	f_079a1e.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6	f_079a1e.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	f_079a1e.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	f_079a1e.tmp

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

f_079a1e.exe

description	pid	process	target process
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp
PID 1688 wrote to memory of 2432	1688	f_079a1e.exe	f_079a1e.tmp

C:\Users\Admin\AppData\Local\Temp\f_079a1e.exe
"C:\Users\Admin\AppData\Local\Temp\f_079a1e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688

C:\Users\Admin\AppData\Local\Temp\is-H1Q53.tmp\f_079a1e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-H1Q53.tmp\f_079a1e.tmp" /SL5="$7011E,837551,832512,C:\Users\Admin\AppData\Local\Temp\f_079a1e.exe"
2⤵
- Executes dropped EXE
- Modifies system certificate store
PID:2432

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

Install Root Certificate

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
cf3fab6f9bcdf281cf7e0cdb67392c39

SHA1
408bc20f32631005677b6c7b2c508fb8b0948d59

SHA256
728d4f8cef9dece0554c949506e41ea2d23b96ad90760d3e3a84da844491d593

SHA512
6e8aae24c847c701678ce7d97bf94991d685c805077f47d4b5f5f19196f4766749fe6263505570e848e546a7d5ec96ff10bb4574b81a86ccdd2ed093423fb2d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9DBD.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
\Users\Admin\AppData\Local\Temp\is-H1Q53.tmp\f_079a1e.tmp
Filesize
3.1MB

MD5
d9071656489ae791be4567102d078756

SHA1
3610202d6bb3f942d279c988f1e2ca57528b237c

SHA256
43d75c55fecd749a884f3a992515e580d176f8f542607768ae99b12e7791b1e5

SHA512
acf4178fc3366a36ad6826988d793034e8412f1de3fe43b854a975b13b0547a1f8ddb27af82f0158ee6fc26f6db80f2a52429fc2302576cec1ccaf5d847b2143

Download Submit
memory/1688-0-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1688-2-0x0000000000401000-0x00000000004B7000-memory.dmp

Filesize
728KB

Download
memory/1688-131-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1688-136-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2432-8-0x0000000000400000-0x000000000071C000-memory.dmp

Filesize
3.1MB

Download
memory/2432-132-0x0000000000400000-0x000000000071C000-memory.dmp

Filesize
3.1MB

Download
memory/2432-134-0x0000000000400000-0x000000000071C000-memory.dmp

Filesize
3.1MB

Download

Analysis

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