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
Sample240522-cdkljagg25
SHA256 63aca71fc4d483663571e7fd733747a9c7afc527aba7cf3b7ccbbe8292aafb69
MD5 a7c8756c56e5a841b91da9d02e769f36
SHA1 2ac01ffff9f107f67c701c11a3c89506765689ce
SHA512 45e224f1c64aa70af39e59f8e2a5ad500d4bf1f9fa9156b0a6626b7737a43237c84562519a5694fe6db3b9696457ab2774fe9bc8bde5fba85fa9612eede969fd
SSDEEP 3072:i5BuYAVrgUCPnSA44444444444444444444444NoPAZ4444444444444yZ6NdraL:i50gUC6fPZ6NdGbOV1pZR4xjXiV2
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1268	Au_.exe

Loads dropped DLL 7 IoCs

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

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28
PID 1920 wrote to memory of 1268	1920	Uninstall.exe	28

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

apphelp.dll

Path C:\Users\Admin\AppData\Local\Temp\nstF8C.tmp\apphelp.dll
Size 1.9MB
SHA256 3f6b1e16842b9ac03cf2aa285ce812d1c526f610854b7e110ac1b4625d55ecf6
MD5 fe83bf8c380b208bd7738ac0d5645962
SHA1 fd83745c0f286d9b2b43316ac9ee1d14459b47f9
SHA512 217df4fdf9e9e3c4b525d00c7c680fc77c63a52817c53b59e5f786eda68b766a8068e44c04c74dc8e695711051d59097c4c2b35e9f1eace38a5cec4e7530b2d3
SSDEEP 49152:+p8upoQCPbiRIO+/z0bZgvOJd20Zy5AmfsWJP:+G++FH
MD5 SHA1 SHA512 SSDEEP

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System.dll

Path \Users\Admin\AppData\Local\Temp\nstF8C.tmp\System.dll
Size 11KB
SHA256 7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af
MD5 bf712f32249029466fa86756f5546950
SHA1 75ac4dc4808ac148ddd78f6b89a51afbd4091c2e
SHA512 13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4
SSDEEP 192:0N2gQuUwXzioj4KALV2upWzVd7q1QDXEbBZ8KxHdGzyS/Kx:rJoiO8V2upW7vQjS/
MD5 SHA1 SHA512 SSDEEP

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UAC.dll

Path \Users\Admin\AppData\Local\Temp\nstF8C.tmp\UAC.dll
Size 13KB
SHA256 c5ab2926c268257122d0342739e73573d7eeda34c861bc7a68a02cbc69bd41af
MD5 a88baad3461d2e9928a15753b1d93fd7
SHA1 bb826e35264968bbc3b981d8430ac55df1e6d4a6
SHA512 5edcf46680716930da7fd1a41b8b0426f057cf4becefb3ee84798ec8b449726afb822fb626c4942036a1ae3bb937184d1f71d0e45075abb5bf167f5d833df43a
SSDEEP 192:qP6KdXy+Yo7e1J8qC25a5mDFmCLGUCVGpU6uNck87I0S/TDqwyTq+:q/q3Pgd5mx6VkEck87ILCTN
MD5 SHA1 SHA512 SSDEEP

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nsDialogs.dll

Path \Users\Admin\AppData\Local\Temp\nstF8C.tmp\nsDialogs.dll
Size 9KB
SHA256 416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6
MD5 4ccc4a742d4423f2f0ed744fd9c81f63
SHA1 704f00a1acc327fd879cf75fc90d0b8f927c36bc
SHA512 790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb
SSDEEP 192:SbEunjqjIcESwFlioU3M0LLF/t8t9pKSfOi:SbESjFCw6oWPFl8jfOi
MD5 SHA1 SHA512 SSDEEP

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registry.dll

Path \Users\Admin\AppData\Local\Temp\nstF8C.tmp\registry.dll
Size 24KB
SHA256 0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d
MD5 2b7007ed0262ca02ef69d8990815cbeb
SHA1 2eabe4f755213666dbbbde024a5235ddde02b47f
SHA512 aa75ee59ca0b8530eb7298b74e5f334ae9d14129f603b285a3170b82103cfdcc175af8185317e6207142517769e69a24b34fcdf0f58ed50a4960cbe8c22a0aca
SSDEEP 384:W2mvyNjH3rPnAZ4wu2QbnC7qB7PnrvScaeYA4CIDEge/QqL2AQ:/75w/OfrzB4CUxuQfA
MD5 SHA1 SHA512 SSDEEP

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Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 194KB
SHA256 63aca71fc4d483663571e7fd733747a9c7afc527aba7cf3b7ccbbe8292aafb69
MD5 a7c8756c56e5a841b91da9d02e769f36
SHA1 2ac01ffff9f107f67c701c11a3c89506765689ce
SHA512 45e224f1c64aa70af39e59f8e2a5ad500d4bf1f9fa9156b0a6626b7737a43237c84562519a5694fe6db3b9696457ab2774fe9bc8bde5fba85fa9612eede969fd
SSDEEP 3072:i5BuYAVrgUCPnSA44444444444444444444444NoPAZ4444444444444yZ6NdraL:i50gUC6fPZ6NdGbOV1pZR4xjXiV2
MD5 SHA1 SHA512 SSDEEP

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

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads