af6bbab59c56d5088f97e2bc417100a0c0081d6e40020b5db342df47b60ffdd3

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 23:55

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General

Target

Uninstall.exe
Size

87KB
MD5

ac3149c788837a0c992a16c97a5eaeee
SHA1

02ed08872f396b95bdbf59585684f8dd7db4afa7
SHA256

35e47a664caa4f41755a337c286b39cd68d0e7b9348144f222c77e4945e5c99c
SHA512

d7197e80cc88b21b109f2a044c546f8f43d69f16b875161e7b82d1d35e99907f8494341a33a18e75f08a1c3e973effc759bf186fc10bb7add98a7abb6a196605
SSDEEP

1536:0spe3RDckBV0DdkJOHR83d0cpdXwyNLIAW35pSkeVS9XaxIdPa6:0a1DdkJoR85pdXnLIA8p3eVS9XT

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2108	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2108	Au_.exe

Loads dropped DLL 64 IoCs

pid	Process
584	Uninstall.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe
2108	Au_.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral19/files/0x00050000000194d7-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31
PID 584 wrote to memory of 2108	584	Uninstall.exe	31

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:584
- 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\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsjDECC.tmp\ioSpecial.ini

Filesize
252B

MD5
69cd3838a8becaa0d16050de6917ccb8

SHA1
ac9d53342a2496f42690371a094f49a11149cf06

SHA256
4f842edff745eb89bfc4e74766f49201723e6ec915955ec465927e2cfeddc8f2

SHA512
c957d42901ad362edec635cd0ca35fb08a9cbdae2767146582233aa559f2f7ac85ee76419ee18829969127f40f182d61c751f47965a35fb39cd253d11a379aa8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjDECC.tmp\ioSpecial.ini

Filesize
610B

MD5
5caca909c6e6f9884e5e513d70979e93

SHA1
b9979b3fb2b3f4ad53f46f03764fe28fc22fe8dd

SHA256
0093cbbd9dc0029a72e3f048415021e45e0fe01f3fa8e6a4f2de81256c140df1

SHA512
780cb72c2034dd5bb7af1301fd34f714380a00d0e40f79c07cca3ff7510bb13788906cd3b11b9a91d9b5f8d77cab42c994ee812c32b7887cc38585d7fefc790e

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\Users\Admin\AppData\Local\Temp\nsjDECC.tmp\InstallOptions.dll

Filesize
12KB

MD5
3c19f79ce11facc2fc4d3351dbb263e0

SHA1
17f4bf4b18ea7700f70ac7d825dc997be0d25f71

SHA256
cfaba712ad640ce2b4890005ffcf03ed9e2a18a6cf9075295f3aaea1478896b9

SHA512
05c9ac861e4fed610171fcb5fad40abc30cbf90e9c7cb13c758f52cdff568af0fdd6af968db4fb143a748c77f21c353c7cffea28cbcbd2ad17157038ab490273

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

Filesize
10KB

MD5
725145e8caa39635cab9899c47c72eda

SHA1
30478c907551bd920bf359638b091fc5c10b5a53

SHA256
1759e4f7777fb8c9ed356a7d4dc237a90e0760061685d44ea02d40ca9e359ceb

SHA512
de31286ea10321f762a3b6e7c6c82177d5b6f45a82adc936fcbbc23105708cbbbec903ba94ba94e7723e80f1828393e5395ef575b37136b19de7535e74e24547

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\Users\Admin\AppData\Local\Temp\nsjDECC.tmp\nsisdt.dll

Filesize
5KB

MD5
df4795dfabe3bc9278a73d496cc4b40d

SHA1
2648ded47e29ecf3e1a1cc20c631e83caf566897

SHA256
2261027077f23c8dba6b72af28862832aaa059740d0f5634b46cabb14326dd10

SHA512
013d9712c3d699a7f41ab3e55931c9abb421fb2eda3542da5a4831ad2f073a1b0643120cc78147db0bfcd01df98ade3045ecb2f1e252fff1dc40be845e5ae303

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

Filesize
87KB

MD5
ac3149c788837a0c992a16c97a5eaeee

SHA1
02ed08872f396b95bdbf59585684f8dd7db4afa7

SHA256
35e47a664caa4f41755a337c286b39cd68d0e7b9348144f222c77e4945e5c99c

SHA512
d7197e80cc88b21b109f2a044c546f8f43d69f16b875161e7b82d1d35e99907f8494341a33a18e75f08a1c3e973effc759bf186fc10bb7add98a7abb6a196605

Download Submit