0577ada4871e64c61659a7d5a3d84074a40cfcef27a61eec48e5d19f78d3b127

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 22:55

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General

Target
$SYSDIR/$_1_.exe
Size 49KB
Sample240202-2wk3fsdafl
SHA256 70d43e3594e461b1baa0574668fcd7d9b2ac7741d3245b8f4f868e5ef07ed986
MD5 154274f2095724e826822bc695dac0bb
SHA1 bf6c7eb599a7039ae6d18a24f120533842a006ef
SHA512 fff766cc90ff31b47019284d62fdd168977ec199261b93421e0316172324164e718597833f35790ee0e8e050e6e4bf0c1cf136f1ff8948450e2692c814c1fb03
SSDEEP 1536:upgpHzb9dZVX9fHMvG0D3XJn5wFsVSf2J:0gXdZt9P6D3XJn5qqSOJ
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2264	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1976	$_1_.exe
2264	Au_.exe
2264	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral5/files/0x000d0000000122c4-2.dat	nsis_installer_1
behavioral5/files/0x000d0000000122c4-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2264	1976	$_1_.exe	28
PID 1976 wrote to memory of 2264	1976	$_1_.exe	28
PID 1976 wrote to memory of 2264	1976	$_1_.exe	28
PID 1976 wrote to memory of 2264	1976	$_1_.exe	28

C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$_1_.exe
"C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$_1_.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$SYSDIR\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

validate.ini

Path C:\Users\Admin\AppData\Local\Temp\nsd5B5B.tmp\validate.ini
Size 457B
SHA256 dceed7449259f6022fb4ecc40fdf70ee9fc4bf36554bcd8b9f5c011f4846b5dd
MD5 6dcc9c40639344d7ccab94186e42991a
SHA1 5afcde6bb2a4786fcf490a674c513dad92fd2f64
SHA512 f7297c43335ecbf143f3c0f295033f1710a034c6e199d3634675da0e873cef05de71510ce0bc43f47dd55ed3e3dd6d0fe4128d4f03edf184019c0ba2906607ec
MD5 SHA1 SHA512

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validate.ini

Path C:\Users\Admin\AppData\Local\Temp\nsd5B5B.tmp\validate.ini
Size 509B
SHA256 3950ccf060ff14e7cd930e5f8f42eed0b970147f6925acb780ad984c59ea2c58
MD5 9eb036a70bdedec68187d7c7cce9d3b9
SHA1 03da275134bccc9d80c2b513d6615e0e68f218a9
SHA512 5ea29a00642cd8c54c35a6ba190c5a52669cad0e11b20071d9f2a5c728592bed98af1cdbc15fec6f1684e003977edae255f335086239dab31e4241793f943ff9
MD5 SHA1 SHA512

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InstallOptions.dll

Path \Users\Admin\AppData\Local\Temp\nsd5B5B.tmp\InstallOptions.dll
Size 14KB
SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
MD5 325b008aec81e5aaa57096f05d4212b5
SHA1 27a2d89747a20305b6518438eff5b9f57f7df5c3
SHA512 18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf
SSDEEP 192:86d+dHXLHQOPiY53uiUdigyU+WsPdc/A1A+2jwK72dwF7dBEnbok:86UdHXcIiY535zBt2jw+BEnbo
MD5 SHA1 SHA512 SSDEEP

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System.dll

Path \Users\Admin\AppData\Local\Temp\nsd5B5B.tmp\System.dll
Size 11KB
SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
MD5 c17103ae9072a06da581dec998343fc1
SHA1 b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA512 d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
SSDEEP 192:7DKnJZCv6VmbJQC+tFiUdK7ckD4gRXKQx+LQ2CSF:7ViJrtFRdbmXK8+PCw
MD5 SHA1 SHA512 SSDEEP

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Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 49KB
SHA256 70d43e3594e461b1baa0574668fcd7d9b2ac7741d3245b8f4f868e5ef07ed986
MD5 154274f2095724e826822bc695dac0bb
SHA1 bf6c7eb599a7039ae6d18a24f120533842a006ef
SHA512 fff766cc90ff31b47019284d62fdd168977ec199261b93421e0316172324164e718597833f35790ee0e8e050e6e4bf0c1cf136f1ff8948450e2692c814c1fb03
SSDEEP 1536:upgpHzb9dZVX9fHMvG0D3XJn5wFsVSf2J:0gXdZt9P6D3XJn5qqSOJ
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads