83098fcbfb62aa6786a98ce1c6258a54cf9d23ab804f69f9a6f47f6649c0dd7c

General

Target

ac43fb871e14717097ca8615aac140eb.exe
Size

385KB
MD5

ac43fb871e14717097ca8615aac140eb
SHA1

2273a15b64df232812686595546f440223671fb4
SHA256

83098fcbfb62aa6786a98ce1c6258a54cf9d23ab804f69f9a6f47f6649c0dd7c
SHA512

d14d5873f127c4d974536112243a4aa84c0ab31eeb4310b1a778801820e455c366e10adade18630fa386499333e26acb0212424551bda68d436aa5150df22f5c
SSDEEP

6144:28qaxhMzeR2p1BYjGnDMBs00NRSalXe12tNNAXIjmgftTLb/xUyi97hB:28JIqR2iGnDyaJX22X7mgx3/YhB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2100	ac43fb871e14717097ca8615aac140eb.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	ac43fb871e14717097ca8615aac140eb.exe

Loads dropped DLL 1 IoCs

pid	Process
1980	ac43fb871e14717097ca8615aac140eb.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	pastebin.com
4	pastebin.com

Modifies system certificate store 2 TTPs 3 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	ac43fb871e14717097ca8615aac140eb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	ac43fb871e14717097ca8615aac140eb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	ac43fb871e14717097ca8615aac140eb.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1980	ac43fb871e14717097ca8615aac140eb.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1980	ac43fb871e14717097ca8615aac140eb.exe
2100	ac43fb871e14717097ca8615aac140eb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2100	1980	ac43fb871e14717097ca8615aac140eb.exe	28
PID 1980 wrote to memory of 2100	1980	ac43fb871e14717097ca8615aac140eb.exe	28
PID 1980 wrote to memory of 2100	1980	ac43fb871e14717097ca8615aac140eb.exe	28
PID 1980 wrote to memory of 2100	1980	ac43fb871e14717097ca8615aac140eb.exe	28

C:\Users\Admin\AppData\Local\Temp\ac43fb871e14717097ca8615aac140eb.exe
"C:\Users\Admin\AppData\Local\Temp\ac43fb871e14717097ca8615aac140eb.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\ac43fb871e14717097ca8615aac140eb.exe
  C:\Users\Admin\AppData\Local\Temp\ac43fb871e14717097ca8615aac140eb.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
67KB

MD5
753df6889fd7410a2e9fe333da83a429

SHA1
3c425f16e8267186061dd48ac1c77c122962456e

SHA256
b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

SHA512
9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3F77.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\ac43fb871e14717097ca8615aac140eb.exe

Filesize
385KB

MD5
52912fb3dd73d843b222bdf3b6be7d8c

SHA1
85b50c55c661b3adc4355f50591d7eb82b6789bf

SHA256
144f374962b4c8cc97fa48269edb9258df0c52a05e97c0ba1dca3f86749dc683

SHA512
eb6d8c0d25ecee6c64a45117a31d9e52b7df43cdeffb5b9dd4ebf76925326b17abf94bd5f3df7c874f33adcfec03f950d1559f51791fa8ba99609fc5be8e9ee5

Download Submit
memory/1980-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1980-4-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1980-13-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1980-15-0x0000000000330000-0x0000000000396000-memory.dmp

Filesize
408KB

Download
memory/1980-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2100-16-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2100-25-0x0000000000260000-0x00000000002BF000-memory.dmp

Filesize
380KB

Download
memory/2100-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2100-18-0x0000000001470000-0x00000000014D6000-memory.dmp

Filesize
408KB

Download
memory/2100-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2100-86-0x000000000D6B0000-0x000000000D6EC000-memory.dmp

Filesize
240KB

Download
memory/2100-87-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

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