16771b1ced89bed951c8311cf2e67c9a1f4398f3f7335d4ed11bbcfbc8a3f00d

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 01:57

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General

Target

$R1/$_1_/Uninstall.exe
Size

194KB
MD5

a7c8756c56e5a841b91da9d02e769f36
SHA1

2ac01ffff9f107f67c701c11a3c89506765689ce
SHA256

63aca71fc4d483663571e7fd733747a9c7afc527aba7cf3b7ccbbe8292aafb69
SHA512

45e224f1c64aa70af39e59f8e2a5ad500d4bf1f9fa9156b0a6626b7737a43237c84562519a5694fe6db3b9696457ab2774fe9bc8bde5fba85fa9612eede969fd
SSDEEP

3072:i5BuYAVrgUCPnSA44444444444444444444444NoPAZ4444444444444yZ6NdraL:i50gUC6fPZ6NdGbOV1pZR4xjXiV2

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

1268 Au_.exe
Loads dropped DLL 7 IoCs

Processes:

Uninstall.exeAu_.exe

pid process

1920 Uninstall.exe
1268 Au_.exe
1268 Au_.exe
1268 Au_.exe
1268 Au_.exe
1268 Au_.exe
1268 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 1920 Uninstall.exe
Token: SeDebugPrivilege 1268 Au_.exe

pid	process
1268	Au_.exe

pid	process
1920	Uninstall.exe
1268	Au_.exe
1268	Au_.exe
1268	Au_.exe
1268	Au_.exe
1268	Au_.exe
1268	Au_.exe

description	pid	process
Token: SeDebugPrivilege	1920	Uninstall.exe
Token: SeDebugPrivilege	1268	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Uninstall.exe

description	pid	process	target process
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	Au_.exe
PID 1920 wrote to memory of 1268	1920	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:1920

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:1268

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nstF8C.tmp\apphelp.dll

Filesize
1.9MB

MD5
fe83bf8c380b208bd7738ac0d5645962

SHA1
fd83745c0f286d9b2b43316ac9ee1d14459b47f9

SHA256
3f6b1e16842b9ac03cf2aa285ce812d1c526f610854b7e110ac1b4625d55ecf6

SHA512
217df4fdf9e9e3c4b525d00c7c680fc77c63a52817c53b59e5f786eda68b766a8068e44c04c74dc8e695711051d59097c4c2b35e9f1eace38a5cec4e7530b2d3

Download Submit
\Users\Admin\AppData\Local\Temp\nstF8C.tmp\System.dll

Filesize
11KB

MD5
bf712f32249029466fa86756f5546950

SHA1
75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

SHA256
7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

SHA512
13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

Download Submit
\Users\Admin\AppData\Local\Temp\nstF8C.tmp\UAC.dll

Filesize
13KB

MD5
a88baad3461d2e9928a15753b1d93fd7

SHA1
bb826e35264968bbc3b981d8430ac55df1e6d4a6

SHA256
c5ab2926c268257122d0342739e73573d7eeda34c861bc7a68a02cbc69bd41af

SHA512
5edcf46680716930da7fd1a41b8b0426f057cf4becefb3ee84798ec8b449726afb822fb626c4942036a1ae3bb937184d1f71d0e45075abb5bf167f5d833df43a

Download Submit
\Users\Admin\AppData\Local\Temp\nstF8C.tmp\nsDialogs.dll

Filesize
9KB

MD5
4ccc4a742d4423f2f0ed744fd9c81f63

SHA1
704f00a1acc327fd879cf75fc90d0b8f927c36bc

SHA256
416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

SHA512
790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

Download Submit
\Users\Admin\AppData\Local\Temp\nstF8C.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
194KB

MD5
a7c8756c56e5a841b91da9d02e769f36

SHA1
2ac01ffff9f107f67c701c11a3c89506765689ce

SHA256
63aca71fc4d483663571e7fd733747a9c7afc527aba7cf3b7ccbbe8292aafb69

SHA512
45e224f1c64aa70af39e59f8e2a5ad500d4bf1f9fa9156b0a6626b7737a43237c84562519a5694fe6db3b9696457ab2774fe9bc8bde5fba85fa9612eede969fd

Download Submit
memory/1268-16-0x0000000000B20000-0x0000000000B79000-memory.dmp

Filesize
356KB

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