dbdc4bbf70c2c98f63488758b63677bee47f87423efddab8b550b386a946355f

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 17:23

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General

Target

$R1/$_1_/Uninstall.exe
Size

300KB
MD5

5221c7b9e997ca55a04536a6e06d956d
SHA1

3c7ea511c6d400123d7eee76043372c2d8d39ac6
SHA256

85157bfd33b4b761f1a0f924c0a48496d99d018cba4d8901129656bc4f72f207
SHA512

3b2bbdec9c3d735a0cc935199cca6ad43737e37ef12a535dd6d04d9b02f38ea18525884e6afccc7bf1a8c6f09e409003edfdc8497f72326b47a9962b34647379
SSDEEP

6144:N50gUCqUKdOEi9JEeF/mbOV1pj74oHKitRW:P0geUeqTF/sOV1pj7NHC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

2940 Au_.exe
Loads dropped DLL 7 IoCs

Processes:

Uninstall.exeAu_.exe

pid process

1196 Uninstall.exe
2940 Au_.exe
2940 Au_.exe
2940 Au_.exe
2940 Au_.exe
2940 Au_.exe
2940 Au_.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Uninstall.exeAu_.exe

description pid process

Token: SeDebugPrivilege 1196 Uninstall.exe
Token: SeDebugPrivilege 2940 Au_.exe

pid	process
2940	Au_.exe

pid	process
1196	Uninstall.exe
2940	Au_.exe
2940	Au_.exe
2940	Au_.exe
2940	Au_.exe
2940	Au_.exe
2940	Au_.exe

description	pid	process
Token: SeDebugPrivilege	1196	Uninstall.exe
Token: SeDebugPrivilege	2940	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Uninstall.exe

description	pid	process	target process
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe
PID 1196 wrote to memory of 2940	1196	Uninstall.exe	Au_.exe

C:\Users\Admin\AppData\Local\Temp\$R1\$_1_\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$R1\$_1_\Uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196

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\$R1\$_1_\
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:2940

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst2270.tmp\apphelp.dll
Filesize
1.8MB

MD5
c9175d4a258ddbc431108be3c52977a4

SHA1
d0df945d2c9e34a081b7cfa2a4912bf74eb125a3

SHA256
b2cc685d31f6aac14b91f641c3e6efe55e6a15ee733c684c854ad351b542967c

SHA512
595954ea34a6f5c3a7de34ff5f447dc49f09a6de064bfb517b6b19a08223312c8c0804beb32bf99124317bd5a697bce33c919a79c52847dc76ef15887b528c2d

Download Submit
\Users\Admin\AppData\Local\Temp\nst2270.tmp\System.dll
Filesize
11KB

MD5
bf712f32249029466fa86756f5546950

SHA1
75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

SHA256
7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

SHA512
13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

Download Submit
\Users\Admin\AppData\Local\Temp\nst2270.tmp\UAC.dll
Filesize
13KB

MD5
a88baad3461d2e9928a15753b1d93fd7

SHA1
bb826e35264968bbc3b981d8430ac55df1e6d4a6

SHA256
c5ab2926c268257122d0342739e73573d7eeda34c861bc7a68a02cbc69bd41af

SHA512
5edcf46680716930da7fd1a41b8b0426f057cf4becefb3ee84798ec8b449726afb822fb626c4942036a1ae3bb937184d1f71d0e45075abb5bf167f5d833df43a

Download Submit
\Users\Admin\AppData\Local\Temp\nst2270.tmp\nsDialogs.dll
Filesize
9KB

MD5
4ccc4a742d4423f2f0ed744fd9c81f63

SHA1
704f00a1acc327fd879cf75fc90d0b8f927c36bc

SHA256
416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

SHA512
790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

Download Submit
\Users\Admin\AppData\Local\Temp\nst2270.tmp\registry.dll
Filesize
24KB

MD5
2b7007ed0262ca02ef69d8990815cbeb

SHA1
2eabe4f755213666dbbbde024a5235ddde02b47f

SHA256
0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d

SHA512
aa75ee59ca0b8530eb7298b74e5f334ae9d14129f603b285a3170b82103cfdcc175af8185317e6207142517769e69a24b34fcdf0f58ed50a4960cbe8c22a0aca

Download Submit
\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Filesize
300KB

MD5
5221c7b9e997ca55a04536a6e06d956d

SHA1
3c7ea511c6d400123d7eee76043372c2d8d39ac6

SHA256
85157bfd33b4b761f1a0f924c0a48496d99d018cba4d8901129656bc4f72f207

SHA512
3b2bbdec9c3d735a0cc935199cca6ad43737e37ef12a535dd6d04d9b02f38ea18525884e6afccc7bf1a8c6f09e409003edfdc8497f72326b47a9962b34647379

Download Submit
memory/2940-16-0x0000000002D00000-0x0000000002D59000-memory.dmp

Filesize
356KB

Download